2 * processes.c: Process handles
5 * Dick Porter (dick@ximian.com)
7 * (C) 2002-2011 Novell, Inc.
8 * Copyright 2011 Xamarin Inc
19 #include <sys/types.h>
25 #include <sys/resource.h>
27 #include <sys/param.h>
30 #ifdef HAVE_SYS_MKDEV_H
31 #include <sys/mkdev.h>
34 /* sys/resource.h (for rusage) is required when using osx 10.3 (but not 10.4) */
36 #include <TargetConditionals.h>
37 #include <sys/resource.h>
44 #if defined(PLATFORM_MACOSX) || defined(__OpenBSD__)
46 #include <sys/sysctl.h>
47 # if !defined(__OpenBSD__)
48 # include <sys/utsname.h>
52 #ifdef PLATFORM_SOLARIS
53 /* procfs.h cannot be included if this define is set, but it seems to work fine if it is undefined */
54 #if _FILE_OFFSET_BITS == 64
55 #undef _FILE_OFFSET_BITS
57 #define _FILE_OFFSET_BITS 64
64 #include <KernelKit.h>
67 #include <mono/io-layer/wapi.h>
68 #include <mono/io-layer/wapi-private.h>
69 #include <mono/io-layer/handles-private.h>
70 #include <mono/io-layer/misc-private.h>
71 #include <mono/io-layer/mono-mutex.h>
72 #include <mono/io-layer/process-private.h>
73 #include <mono/io-layer/threads.h>
74 #include <mono/utils/strenc.h>
75 #include <mono/utils/mono-path.h>
76 #include <mono/io-layer/timefuncs-private.h>
77 #include <mono/utils/mono-time.h>
78 #include <mono/utils/mono-membar.h>
80 /* The process' environment strings */
81 #if defined(__APPLE__) && !defined (__arm__)
82 /* Apple defines this in crt_externs.h but doesn't provide that header for
83 * arm-apple-darwin9. We'll manually define the symbol on Apple as it does
84 * in fact exist on all implementations (so far)
86 gchar
***_NSGetEnviron(void);
87 #define environ (*_NSGetEnviron())
89 extern char **environ
;
93 #define DEBUG(...) g_message(__VA_ARGS__)
94 #define DEBUG_ENABLED 1
99 static guint32
process_wait (gpointer handle
, guint32 timeout
, gboolean alertable
);
100 static void process_close (gpointer handle
, gpointer data
);
101 static gboolean
is_pid_valid (pid_t pid
);
103 #if !defined(__OpenBSD__)
105 open_process_map (int pid
, const char *mode
);
108 struct _WapiHandleOps _wapi_process_ops
= {
109 process_close
, /* close_shared */
113 process_wait
, /* special_wait */
118 static struct sigaction previous_chld_sa
;
120 static mono_once_t process_sig_chld_once
= MONO_ONCE_INIT
;
121 static void process_add_sigchld_handler (void);
123 /* The signal-safe logic to use mono_processes goes like this:
124 * - The list must be safe to traverse for the signal handler at all times.
125 * It's safe to: prepend an entry (which is a single store to 'mono_processes'),
126 * unlink an entry (assuming the unlinked entry isn't freed and doesn't
127 * change its 'next' pointer so that it can still be traversed).
128 * When cleaning up we first unlink an entry, then we verify that
129 * the read lock isn't locked. Then we can free the entry, since
130 * we know that nobody is using the old version of the list (including
131 * the unlinked entry).
132 * We also need to lock when adding and cleaning up so that those two
133 * operations don't mess with eachother. (This lock is not used in the
136 static struct MonoProcess
*mono_processes
= NULL
;
137 static volatile gint32 mono_processes_read_lock
= 0;
138 static volatile gint32 mono_processes_cleaning_up
= 0;
139 static mono_mutex_t mono_processes_mutex
;
140 static void mono_processes_cleanup (void);
142 static mono_once_t process_current_once
=MONO_ONCE_INIT
;
143 static gpointer current_process
=NULL
;
145 static mono_once_t process_ops_once
=MONO_ONCE_INIT
;
147 static void process_ops_init (void)
149 _wapi_handle_register_capabilities (WAPI_HANDLE_PROCESS
,
150 WAPI_HANDLE_CAP_WAIT
|
151 WAPI_HANDLE_CAP_SPECIAL_WAIT
);
155 /* Check if a pid is valid - i.e. if a process exists with this pid. */
156 static gboolean
is_pid_valid (pid_t pid
)
158 gboolean result
= FALSE
;
160 #if defined(PLATFORM_MACOSX) || defined(__OpenBSD__)
161 if (((kill(pid
, 0) == 0) || (errno
== EPERM
)) && pid
!= 0)
163 #elif defined(__HAIKU__)
165 if (get_team_info ((team_id
)pid
, &teamInfo
) == B_OK
)
168 gchar
*dir
= g_strdup_printf ("/proc/%d", pid
);
169 if (!access (dir
, F_OK
))
177 static void process_set_defaults (struct _WapiHandle_process
*process_handle
)
179 /* These seem to be the defaults on w2k */
180 process_handle
->min_working_set
= 204800;
181 process_handle
->max_working_set
= 1413120;
183 _wapi_time_t_to_filetime (time (NULL
), &process_handle
->create_time
);
187 len16 (const gunichar2
*str
)
198 utf16_concat (const gunichar2
*first
, ...)
205 va_start (args
, first
);
206 total
+= len16 (first
);
207 for (s
= va_arg (args
, gunichar2
*); s
!= NULL
; s
= va_arg(args
, gunichar2
*)){
212 ret
= g_new (gunichar2
, total
+ 1);
218 for (s
= first
; *s
!= 0; s
++)
220 va_start (args
, first
);
221 for (s
= va_arg (args
, gunichar2
*); s
!= NULL
; s
= va_arg (args
, gunichar2
*)){
224 for (p
= s
; *p
!= 0; p
++)
232 #ifdef PLATFORM_MACOSX
234 /* 0 = no detection; -1 = not 10.5 or higher; 1 = 10.5 or higher */
235 static int osx_10_5_or_higher
;
238 detect_osx_10_5_or_higher (void)
244 if (uname (&u
) != 0){
245 osx_10_5_or_higher
= 1;
253 osx_10_5_or_higher
= -1;
255 osx_10_5_or_higher
= 1;
259 is_macos_10_5_or_higher (void)
261 if (osx_10_5_or_higher
== 0)
262 detect_osx_10_5_or_higher ();
264 return (osx_10_5_or_higher
== 1);
268 static const gunichar2 utf16_space_bytes
[2] = { 0x20, 0 };
269 static const gunichar2
*utf16_space
= utf16_space_bytes
;
270 static const gunichar2 utf16_quote_bytes
[2] = { 0x22, 0 };
271 static const gunichar2
*utf16_quote
= utf16_quote_bytes
;
276 print_utf16 (gunichar2
*str
)
280 res
= g_utf16_to_utf8 (str
, -1, NULL
, NULL
, NULL
);
281 g_print ("%s\n", res
);
286 /* Implemented as just a wrapper around CreateProcess () */
287 gboolean
ShellExecuteEx (WapiShellExecuteInfo
*sei
)
290 WapiProcessInformation process_info
;
294 /* w2k just segfaults here, but we can do better than
297 SetLastError (ERROR_INVALID_PARAMETER
);
301 if (sei
->lpFile
== NULL
) {
302 /* w2k returns TRUE for this, for some reason. */
306 /* Put both executable and parameters into the second argument
307 * to CreateProcess (), so it searches $PATH. The conversion
308 * into and back out of utf8 is because there is no
309 * g_strdup_printf () equivalent for gunichar2 :-(
311 args
= utf16_concat (utf16_quote
, sei
->lpFile
, utf16_quote
, sei
->lpParameters
== NULL
? NULL
: utf16_space
, sei
->lpParameters
, NULL
);
313 SetLastError (ERROR_INVALID_DATA
);
316 ret
= CreateProcess (NULL
, args
, NULL
, NULL
, TRUE
,
317 CREATE_UNICODE_ENVIRONMENT
, NULL
,
318 sei
->lpDirectory
, NULL
, &process_info
);
321 if (!ret
&& GetLastError () == ERROR_OUTOFMEMORY
)
325 static char *handler
;
326 static gunichar2
*handler_utf16
;
328 if (handler_utf16
== (gunichar2
*)-1)
331 #ifdef PLATFORM_MACOSX
332 if (is_macos_10_5_or_higher ())
333 handler
= g_strdup ("/usr/bin/open -W");
335 handler
= g_strdup ("/usr/bin/open");
338 * On Linux, try: xdg-open, the FreeDesktop standard way of doing it,
339 * if that fails, try to use gnome-open, then kfmclient
341 handler
= g_find_program_in_path ("xdg-open");
342 if (handler
== NULL
){
343 handler
= g_find_program_in_path ("gnome-open");
344 if (handler
== NULL
){
345 handler
= g_find_program_in_path ("kfmclient");
346 if (handler
== NULL
){
347 handler_utf16
= (gunichar2
*) -1;
350 /* kfmclient needs exec argument */
352 handler
= g_strconcat (old
, " exec",
359 handler_utf16
= g_utf8_to_utf16 (handler
, -1, NULL
, NULL
, NULL
);
362 /* Put quotes around the filename, in case it's a url
363 * that contains #'s (CreateProcess() calls
364 * g_shell_parse_argv(), which deliberately throws
365 * away anything after an unquoted #). Fixes bug
368 args
= utf16_concat (handler_utf16
, utf16_space
, utf16_quote
,
369 sei
->lpFile
, utf16_quote
,
370 sei
->lpParameters
== NULL
? NULL
: utf16_space
,
371 sei
->lpParameters
, NULL
);
373 SetLastError (ERROR_INVALID_DATA
);
376 ret
= CreateProcess (NULL
, args
, NULL
, NULL
, TRUE
,
377 CREATE_UNICODE_ENVIRONMENT
, NULL
,
378 sei
->lpDirectory
, NULL
, &process_info
);
381 SetLastError (ERROR_INVALID_DATA
);
386 if (sei
->fMask
& SEE_MASK_NOCLOSEPROCESS
) {
387 sei
->hProcess
= process_info
.hProcess
;
389 CloseHandle (process_info
.hProcess
);
396 is_managed_binary (const gchar
*filename
)
398 int original_errno
= errno
;
399 #if defined(HAVE_LARGE_FILE_SUPPORT) && defined(O_LARGEFILE)
400 int file
= open (filename
, O_RDONLY
| O_LARGEFILE
);
402 int file
= open (filename
, O_RDONLY
);
405 unsigned char buffer
[8];
406 off_t file_size
, optional_header_offset
;
407 off_t pe_header_offset
;
408 gboolean managed
= FALSE
;
410 guint32 first_word
, second_word
;
412 /* If we are unable to open the file, then we definitely
413 * can't say that it is managed. The child mono process
414 * probably wouldn't be able to open it anyway.
417 errno
= original_errno
;
421 /* Retrieve the length of the file for future sanity checks. */
422 file_size
= lseek (file
, 0, SEEK_END
);
423 lseek (file
, 0, SEEK_SET
);
425 /* We know we need to read a header field at offset 60. */
429 num_read
= read (file
, buffer
, 2);
431 if ((num_read
!= 2) || (buffer
[0] != 'M') || (buffer
[1] != 'Z'))
434 new_offset
= lseek (file
, 60, SEEK_SET
);
436 if (new_offset
!= 60)
439 num_read
= read (file
, buffer
, 4);
443 pe_header_offset
= buffer
[0]
448 if (pe_header_offset
+ 24 > file_size
)
451 new_offset
= lseek (file
, pe_header_offset
, SEEK_SET
);
453 if (new_offset
!= pe_header_offset
)
456 num_read
= read (file
, buffer
, 4);
458 if ((num_read
!= 4) || (buffer
[0] != 'P') || (buffer
[1] != 'E') || (buffer
[2] != 0) || (buffer
[3] != 0))
462 * Verify that the header we want in the optional header data
463 * is present in this binary.
465 new_offset
= lseek (file
, pe_header_offset
+ 20, SEEK_SET
);
467 if (new_offset
!= pe_header_offset
+ 20)
470 num_read
= read (file
, buffer
, 2);
472 if ((num_read
!= 2) || ((buffer
[0] | (buffer
[1] << 8)) < 216))
475 /* Read the CLR header address and size fields. These will be
476 * zero if the binary is not managed.
478 optional_header_offset
= pe_header_offset
+ 24;
479 new_offset
= lseek (file
, optional_header_offset
+ 208, SEEK_SET
);
481 if (new_offset
!= optional_header_offset
+ 208)
484 num_read
= read (file
, buffer
, 8);
486 /* We are not concerned with endianness, only with
487 * whether it is zero or not.
489 first_word
= *(guint32
*)&buffer
[0];
490 second_word
= *(guint32
*)&buffer
[4];
492 if ((num_read
!= 8) || (first_word
== 0) || (second_word
== 0))
499 errno
= original_errno
;
503 gboolean
CreateProcessWithLogonW (const gunichar2
*username
,
504 const gunichar2
*domain
,
505 const gunichar2
*password
,
506 const guint32 logonFlags
,
507 const gunichar2
*appname
,
508 const gunichar2
*cmdline
,
509 guint32 create_flags
,
511 const gunichar2
*cwd
,
512 WapiStartupInfo
*startup
,
513 WapiProcessInformation
*process_info
)
515 /* FIXME: use user information */
516 return CreateProcess (appname
, cmdline
, NULL
, NULL
, FALSE
, create_flags
, env
, cwd
, startup
, process_info
);
520 is_executable (const char *prog
)
523 if (access (prog
, X_OK
) != 0)
525 if (stat (prog
, &buf
))
527 if (S_ISREG (buf
.st_mode
))
533 switchDirectorySeparators(gchar
*path
)
535 size_t i
, pathLength
= strlen(path
);
537 /* Turn all the slashes round the right way, except for \' */
538 /* There are probably other characters that need to be excluded as well. */
539 for (i
= 0; i
< pathLength
; i
++)
541 if (path
[i
] == '\\' && i
< pathLength
- 1 && path
[i
+1] != '\'' ) {
547 gboolean
CreateProcess (const gunichar2
*appname
, const gunichar2
*cmdline
,
548 WapiSecurityAttributes
*process_attrs G_GNUC_UNUSED
,
549 WapiSecurityAttributes
*thread_attrs G_GNUC_UNUSED
,
550 gboolean inherit_handles
, guint32 create_flags
,
551 gpointer new_environ
, const gunichar2
*cwd
,
552 WapiStartupInfo
*startup
,
553 WapiProcessInformation
*process_info
)
555 gchar
*cmd
=NULL
, *prog
= NULL
, *full_prog
= NULL
, *args
= NULL
, *args_after_prog
= NULL
, *dir
= NULL
, **env_strings
= NULL
, **argv
= NULL
;
556 guint32 i
, env_count
= 0;
557 gboolean ret
= FALSE
;
559 struct _WapiHandle_process process_handle
= {0}, *process_handle_data
;
561 int in_fd
, out_fd
, err_fd
;
564 int startup_pipe
[2] = {-1, -1};
566 struct MonoProcess
*mono_process
;
568 mono_once (&process_ops_once
, process_ops_init
);
569 mono_once (&process_sig_chld_once
, process_add_sigchld_handler
);
571 /* appname and cmdline specify the executable and its args:
573 * If appname is not NULL, it is the name of the executable.
574 * Otherwise the executable is the first token in cmdline.
576 * Executable searching:
578 * If appname is not NULL, it can specify the full path and
579 * file name, or else a partial name and the current directory
580 * will be used. There is no additional searching.
582 * If appname is NULL, the first whitespace-delimited token in
583 * cmdline is used. If the name does not contain a full
584 * directory path, the search sequence is:
586 * 1) The directory containing the current process
587 * 2) The current working directory
588 * 3) The windows system directory (Ignored)
589 * 4) The windows directory (Ignored)
592 * Just to make things more interesting, tokens can contain
593 * white space if they are surrounded by quotation marks. I'm
594 * beginning to understand just why windows apps are generally
595 * so crap, with an API like this :-(
597 if (appname
!= NULL
) {
598 cmd
= mono_unicode_to_external (appname
);
600 DEBUG ("%s: unicode conversion returned NULL",
603 SetLastError (ERROR_PATH_NOT_FOUND
);
607 switchDirectorySeparators(cmd
);
610 if (cmdline
!= NULL
) {
611 args
= mono_unicode_to_external (cmdline
);
613 DEBUG ("%s: unicode conversion returned NULL", __func__
);
615 SetLastError (ERROR_PATH_NOT_FOUND
);
621 dir
= mono_unicode_to_external (cwd
);
623 DEBUG ("%s: unicode conversion returned NULL", __func__
);
625 SetLastError (ERROR_PATH_NOT_FOUND
);
629 /* Turn all the slashes round the right way */
630 switchDirectorySeparators(dir
);
634 /* We can't put off locating the executable any longer :-( */
637 if (g_ascii_isalpha (cmd
[0]) && (cmd
[1] == ':')) {
638 /* Strip off the drive letter. I can't
639 * believe that CP/M holdover is still
642 g_memmove (cmd
, cmd
+2, strlen (cmd
)-2);
643 cmd
[strlen (cmd
)-2] = '\0';
646 unquoted
= g_shell_unquote (cmd
, NULL
);
647 if (unquoted
[0] == '/') {
648 /* Assume full path given */
649 prog
= g_strdup (unquoted
);
651 /* Executable existing ? */
652 if (!is_executable (prog
)) {
653 DEBUG ("%s: Couldn't find executable %s",
656 SetLastError (ERROR_FILE_NOT_FOUND
);
660 /* Search for file named by cmd in the current
663 char *curdir
= g_get_current_dir ();
665 prog
= g_strdup_printf ("%s/%s", curdir
, unquoted
);
668 /* And make sure it's executable */
669 if (!is_executable (prog
)) {
670 DEBUG ("%s: Couldn't find executable %s",
673 SetLastError (ERROR_FILE_NOT_FOUND
);
679 args_after_prog
= args
;
684 /* Dig out the first token from args, taking quotation
688 /* First, strip off all leading whitespace */
689 args
= g_strchug (args
);
691 /* args_after_prog points to the contents of args
692 * after token has been set (otherwise argv[0] is
695 args_after_prog
= args
;
697 /* Assume the opening quote will always be the first
700 if (args
[0] == '\"' || args
[0] == '\'') {
702 for (i
= 1; args
[i
] != '\0' && args
[i
] != quote
; i
++);
703 if (args
[i
+ 1] == '\0' || g_ascii_isspace (args
[i
+1])) {
704 /* We found the first token */
705 token
= g_strndup (args
+1, i
-1);
706 args_after_prog
= g_strchug (args
+ i
+ 1);
708 /* Quotation mark appeared in the
709 * middle of the token. Just give the
710 * whole first token, quotes and all,
717 /* No quote mark, or malformed */
718 for (i
= 0; args
[i
] != '\0'; i
++) {
719 if (g_ascii_isspace (args
[i
])) {
720 token
= g_strndup (args
, i
);
721 args_after_prog
= args
+ i
+ 1;
727 if (token
== NULL
&& args
[0] != '\0') {
728 /* Must be just one token in the string */
729 token
= g_strdup (args
);
730 args_after_prog
= NULL
;
735 DEBUG ("%s: Couldn't find what to exec", __func__
);
737 SetLastError (ERROR_PATH_NOT_FOUND
);
741 /* Turn all the slashes round the right way. Only for
744 switchDirectorySeparators(token
);
746 if (g_ascii_isalpha (token
[0]) && (token
[1] == ':')) {
747 /* Strip off the drive letter. I can't
748 * believe that CP/M holdover is still
751 g_memmove (token
, token
+2, strlen (token
)-2);
752 token
[strlen (token
)-2] = '\0';
755 if (token
[0] == '/') {
756 /* Assume full path given */
757 prog
= g_strdup (token
);
759 /* Executable existing ? */
760 if (!is_executable (prog
)) {
761 DEBUG ("%s: Couldn't find executable %s",
764 SetLastError (ERROR_FILE_NOT_FOUND
);
769 char *curdir
= g_get_current_dir ();
771 /* FIXME: Need to record the directory
772 * containing the current process, and check
773 * that for the new executable as the first
777 prog
= g_strdup_printf ("%s/%s", curdir
, token
);
780 /* I assume X_OK is the criterion to use,
783 if (!is_executable (prog
)) {
785 prog
= g_find_program_in_path (token
);
787 DEBUG ("%s: Couldn't find executable %s", __func__
, token
);
790 SetLastError (ERROR_FILE_NOT_FOUND
);
799 DEBUG ("%s: Exec prog [%s] args [%s]", __func__
, prog
,
802 /* Check for CLR binaries; if found, we will try to invoke
803 * them using the same mono binary that started us.
805 if (is_managed_binary (prog
)) {
806 gunichar2
*newapp
, *newcmd
;
809 newapp
= mono_unicode_from_external ("mono", &bytes_ignored
);
811 if (newapp
!= NULL
) {
812 if (appname
!= NULL
) {
813 newcmd
= utf16_concat (newapp
, utf16_space
,
814 appname
, utf16_space
,
817 newcmd
= utf16_concat (newapp
, utf16_space
,
821 g_free ((gunichar2
*)newapp
);
823 if (newcmd
!= NULL
) {
824 ret
= CreateProcess (NULL
, newcmd
,
828 create_flags
, new_environ
,
832 g_free ((gunichar2
*)newcmd
);
839 if (args_after_prog
!= NULL
&& *args_after_prog
) {
842 qprog
= g_shell_quote (prog
);
843 full_prog
= g_strconcat (qprog
, " ", args_after_prog
, NULL
);
846 full_prog
= g_shell_quote (prog
);
849 ret
= g_shell_parse_argv (full_prog
, NULL
, &argv
, &gerr
);
851 g_message ("CreateProcess: %s\n", gerr
->message
);
857 if (startup
!= NULL
&& startup
->dwFlags
& STARTF_USESTDHANDLES
) {
858 in_fd
= GPOINTER_TO_UINT (startup
->hStdInput
);
859 out_fd
= GPOINTER_TO_UINT (startup
->hStdOutput
);
860 err_fd
= GPOINTER_TO_UINT (startup
->hStdError
);
862 in_fd
= GPOINTER_TO_UINT (GetStdHandle (STD_INPUT_HANDLE
));
863 out_fd
= GPOINTER_TO_UINT (GetStdHandle (STD_OUTPUT_HANDLE
));
864 err_fd
= GPOINTER_TO_UINT (GetStdHandle (STD_ERROR_HANDLE
));
867 g_strlcpy (process_handle
.proc_name
, prog
,
868 _WAPI_PROC_NAME_MAX_LEN
- 1);
870 process_set_defaults (&process_handle
);
872 handle
= _wapi_handle_new (WAPI_HANDLE_PROCESS
, &process_handle
);
873 if (handle
== _WAPI_HANDLE_INVALID
) {
874 g_warning ("%s: error creating process handle", __func__
);
877 SetLastError (ERROR_OUTOFMEMORY
);
881 /* new_environ is a block of NULL-terminated strings, which
882 * is itself NULL-terminated. Of course, passing an array of
883 * string pointers would have made things too easy :-(
885 * If new_environ is not NULL it specifies the entire set of
886 * environment variables in the new process. Otherwise the
887 * new process inherits the same environment.
889 if (new_environ
!= NULL
) {
890 gunichar2
*new_environp
;
892 /* Count the number of strings */
893 for (new_environp
= (gunichar2
*)new_environ
; *new_environp
;
896 while (*new_environp
) {
901 /* +2: one for the process handle value, and the last
904 env_strings
= g_new0 (gchar
*, env_count
+ 2);
906 /* Copy each environ string into 'strings' turning it
907 * into utf8 (or the requested encoding) at the same
911 for (new_environp
= (gunichar2
*)new_environ
; *new_environp
;
913 env_strings
[env_count
] = mono_unicode_to_external (new_environp
);
915 while (*new_environp
) {
920 for (i
= 0; environ
[i
] != NULL
; i
++) {
924 /* +2: one for the process handle value, and the last
927 env_strings
= g_new0 (gchar
*, env_count
+ 2);
929 /* Copy each environ string into 'strings' turning it
930 * into utf8 (or the requested encoding) at the same
934 for (i
= 0; environ
[i
] != NULL
; i
++) {
935 env_strings
[env_count
] = g_strdup (environ
[i
]);
939 /* pass process handle info to the child, so it doesn't have
940 * to do an expensive search over the whole list
942 if (env_strings
!= NULL
) {
943 struct _WapiHandleUnshared
*handle_data
;
944 struct _WapiHandle_shared_ref
*ref
;
946 handle_data
= &_WAPI_PRIVATE_HANDLES(GPOINTER_TO_UINT(handle
));
947 ref
= &handle_data
->u
.shared
;
949 env_strings
[env_count
] = g_strdup_printf ("_WAPI_PROCESS_HANDLE_OFFSET=%d", ref
->offset
);
952 /* Create a pipe to make sure the child doesn't exit before
953 * we can add the process to the linked list of mono_processes */
954 if (pipe (startup_pipe
) == -1) {
955 /* Could not create the pipe to synchroniz process startup. We'll just not synchronize.
956 * This is just for a very hard to hit race condition in the first place */
957 startup_pipe
[0] = startup_pipe
[1] = -1;
958 DEBUG ("%s: new process startup not synchronized. We may not notice if the newly created process exits immediately.", __func__
);
961 thr_ret
= _wapi_handle_lock_shared_handles ();
962 g_assert (thr_ret
== 0);
967 SetLastError (ERROR_OUTOFMEMORY
);
968 _wapi_handle_unref (handle
);
970 } else if (pid
== 0) {
973 if (startup_pipe
[0] != -1) {
974 /* Wait until the parent has updated it's internal data */
975 read (startup_pipe
[0], &dummy
, 1);
976 DEBUG ("%s: child: parent has completed its setup", __func__
);
977 close (startup_pipe
[0]);
978 close (startup_pipe
[1]);
981 /* should we detach from the process group? */
983 /* Connect stdin, stdout and stderr */
988 if (inherit_handles
!= TRUE
) {
989 /* FIXME: do something here */
992 /* Close all file descriptors */
993 for (i
= getdtablesize () - 1; i
> 2; i
--) {
998 DEBUG ("%s: exec()ing [%s] in dir [%s]", __func__
, cmd
,
1000 for (i
= 0; argv
[i
] != NULL
; i
++) {
1001 g_message ("arg %d: [%s]", i
, argv
[i
]);
1004 for (i
= 0; env_strings
[i
] != NULL
; i
++) {
1005 g_message ("env %d: [%s]", i
, env_strings
[i
]);
1010 if (dir
!= NULL
&& chdir (dir
) == -1) {
1016 execve (argv
[0], argv
, env_strings
);
1023 ret
= _wapi_lookup_handle (handle
, WAPI_HANDLE_PROCESS
,
1024 (gpointer
*)&process_handle_data
);
1026 g_warning ("%s: error looking up process handle %p", __func__
,
1028 _wapi_handle_unref (handle
);
1032 process_handle_data
->id
= pid
;
1034 /* Add our mono_process into the linked list of mono_processes */
1035 mono_process
= (struct MonoProcess
*) g_malloc0 (sizeof (struct MonoProcess
));
1036 mono_process
->pid
= pid
;
1037 mono_process
->handle_count
= 1;
1038 if (MONO_SEM_INIT (&mono_process
->exit_sem
, 0) != 0) {
1039 /* If we can't create the exit semaphore, we just don't add anything
1040 * to our list of mono processes. Waiting on the process will return
1042 g_warning ("%s: could not create exit semaphore for process.", strerror (errno
));
1043 g_free (mono_process
);
1045 /* Keep the process handle artificially alive until the process
1046 * exits so that the information in the handle isn't lost. */
1047 _wapi_handle_ref (handle
);
1048 mono_process
->handle
= handle
;
1050 process_handle_data
->self
= _wapi_getpid ();
1051 process_handle_data
->mono_process
= mono_process
;
1053 mono_mutex_lock (&mono_processes_mutex
);
1054 mono_process
->next
= mono_processes
;
1055 mono_processes
= mono_process
;
1056 mono_mutex_unlock (&mono_processes_mutex
);
1059 if (process_info
!= NULL
) {
1060 process_info
->hProcess
= handle
;
1061 process_info
->dwProcessId
= pid
;
1063 /* FIXME: we might need to handle the thread info some
1066 process_info
->hThread
= INVALID_HANDLE_VALUE
;
1067 process_info
->dwThreadId
= 0;
1071 _wapi_handle_unlock_shared_handles ();
1073 if (startup_pipe
[1] != -1) {
1074 /* Write 1 byte, doesn't matter what */
1075 write (startup_pipe
[1], startup_pipe
, 1);
1076 close (startup_pipe
[0]);
1077 close (startup_pipe
[1]);
1084 if (full_prog
!= NULL
) {
1096 if(env_strings
!= NULL
) {
1097 g_strfreev (env_strings
);
1103 DEBUG ("%s: returning handle %p for pid %d", __func__
, handle
,
1106 /* Check if something needs to be cleaned up. */
1107 mono_processes_cleanup ();
1112 static void process_set_name (struct _WapiHandle_process
*process_handle
)
1114 gchar
*progname
, *utf8_progname
, *slash
;
1116 progname
=g_get_prgname ();
1117 utf8_progname
=mono_utf8_from_external (progname
);
1119 DEBUG ("%s: using [%s] as prog name", __func__
, progname
);
1121 if(utf8_progname
!=NULL
) {
1122 slash
=strrchr (utf8_progname
, '/');
1124 g_strlcpy (process_handle
->proc_name
, slash
+1,
1125 _WAPI_PROC_NAME_MAX_LEN
- 1);
1127 g_strlcpy (process_handle
->proc_name
, utf8_progname
,
1128 _WAPI_PROC_NAME_MAX_LEN
- 1);
1131 g_free (utf8_progname
);
1135 extern void _wapi_time_t_to_filetime (time_t timeval
, WapiFileTime
*filetime
);
1137 #if !GLIB_CHECK_VERSION (2,4,0)
1138 #define g_setenv(a,b,c) setenv(a,b,c)
1139 #define g_unsetenv(a) unsetenv(a)
1142 static void process_set_current (void)
1144 pid_t pid
= _wapi_getpid ();
1145 const char *handle_env
;
1146 struct _WapiHandle_process process_handle
= {0};
1148 mono_once (&process_ops_once
, process_ops_init
);
1150 handle_env
= g_getenv ("_WAPI_PROCESS_HANDLE_OFFSET");
1151 g_unsetenv ("_WAPI_PROCESS_HANDLE_OFFSET");
1153 if (handle_env
!= NULL
) {
1154 struct _WapiHandle_process
*process_handlep
;
1155 gchar
*procname
= NULL
;
1158 current_process
= _wapi_handle_new_from_offset (WAPI_HANDLE_PROCESS
, atoi (handle_env
), TRUE
);
1160 DEBUG ("%s: Found my process handle: %p (offset %d 0x%x)",
1161 __func__
, current_process
, atoi (handle_env
),
1164 ok
= _wapi_lookup_handle (current_process
, WAPI_HANDLE_PROCESS
,
1165 (gpointer
*)&process_handlep
);
1167 /* This test will probably break on linuxthreads, but
1168 * that should be ancient history on all distros we
1171 if (process_handlep
->id
== pid
) {
1172 procname
= process_handlep
->proc_name
;
1173 if (!strcmp (procname
, "mono")) {
1174 /* Set a better process name */
1175 DEBUG ("%s: Setting better process name", __func__
);
1177 process_set_name (process_handlep
);
1179 DEBUG ("%s: Leaving process name: %s", __func__
, procname
);
1185 /* Wrong pid, so drop this handle and fall through to
1188 _wapi_handle_unref (current_process
);
1192 /* We get here if the handle wasn't specified in the
1193 * environment, or if the process ID was wrong, or if the
1194 * handle lookup failed (eg if the parent process forked and
1195 * quit immediately, and deleted the shared data before the
1196 * child got a chance to attach it.)
1199 DEBUG ("%s: Need to create my own process handle", __func__
);
1201 process_handle
.id
= pid
;
1203 process_set_defaults (&process_handle
);
1204 process_set_name (&process_handle
);
1206 current_process
= _wapi_handle_new (WAPI_HANDLE_PROCESS
,
1208 if (current_process
== _WAPI_HANDLE_INVALID
) {
1209 g_warning ("%s: error creating process handle", __func__
);
1214 gpointer
_wapi_process_duplicate ()
1216 mono_once (&process_current_once
, process_set_current
);
1218 _wapi_handle_ref (current_process
);
1220 return(current_process
);
1223 /* Returns a pseudo handle that doesn't need to be closed afterwards */
1224 gpointer
GetCurrentProcess (void)
1226 mono_once (&process_current_once
, process_set_current
);
1228 return(_WAPI_PROCESS_CURRENT
);
1231 guint32
GetProcessId (gpointer handle
)
1233 struct _WapiHandle_process
*process_handle
;
1236 if ((GPOINTER_TO_UINT (handle
) & _WAPI_PROCESS_UNHANDLED
) == _WAPI_PROCESS_UNHANDLED
) {
1237 /* This is a pseudo handle */
1238 return(GPOINTER_TO_UINT (handle
) & _WAPI_PROCESS_UNHANDLED_PID_MASK
);
1241 ok
= _wapi_lookup_handle (handle
, WAPI_HANDLE_PROCESS
,
1242 (gpointer
*)&process_handle
);
1244 SetLastError (ERROR_INVALID_HANDLE
);
1248 return (process_handle
->id
);
1251 guint32
GetCurrentProcessId (void)
1253 mono_once (&process_current_once
, process_set_current
);
1255 return (GetProcessId (current_process
));
1258 /* Returns the process id as a convenience to the functions that call this */
1259 static pid_t
signal_process_if_gone (gpointer handle
)
1261 struct _WapiHandle_process
*process_handle
;
1264 g_assert ((GPOINTER_TO_UINT (handle
) & _WAPI_PROCESS_UNHANDLED
) != _WAPI_PROCESS_UNHANDLED
);
1266 /* Make sure the process is signalled if it has exited - if
1267 * the parent process didn't wait for it then it won't be
1269 ok
= _wapi_lookup_handle (handle
, WAPI_HANDLE_PROCESS
,
1270 (gpointer
*)&process_handle
);
1272 /* It's possible that the handle has vanished during
1273 * the _wapi_search_handle before it gets here, so
1274 * don't spam the console with warnings.
1276 /* g_warning ("%s: error looking up process handle %p",
1277 __func__, handle);*/
1282 DEBUG ("%s: looking at process %d", __func__
, process_handle
->id
);
1284 if (kill (process_handle
->id
, 0) == -1 &&
1287 /* The process is dead, (EPERM tells us a new process
1288 * has that ID, but as it's owned by someone else it
1289 * can't be the one listed in our shared memory file)
1291 _wapi_shared_handle_set_signal_state (handle
, TRUE
);
1294 return (process_handle
->id
);
1298 static gboolean
process_enum (gpointer handle
, gpointer user_data
)
1300 GArray
*processes
=user_data
;
1301 pid_t pid
= signal_process_if_gone (handle
);
1308 /* Ignore processes that have already exited (ie they are signalled) */
1309 if (_wapi_handle_issignalled (handle
) == FALSE
) {
1310 DEBUG ("%s: process %d added to array", __func__
, pid
);
1312 /* This ensures that duplicates aren't returned (see
1313 * the comment above _wapi_search_handle () for why
1316 for (i
= 0; i
< processes
->len
; i
++) {
1317 if (g_array_index (processes
, pid_t
, i
) == pid
) {
1318 /* We've already got this one, return
1319 * FALSE to keep searching
1325 g_array_append_val (processes
, pid
);
1328 /* Return false to keep searching */
1331 #endif /* UNUSED_CODE */
1333 #if defined(PLATFORM_MACOSX) || defined(__OpenBSD__)
1335 gboolean
EnumProcesses (guint32
*pids
, guint32 len
, guint32
*needed
)
1337 guint32 count
, fit
, i
, j
;
1340 size_t proclength
, size
;
1341 #if defined(__OpenBSD__)
1342 struct kinfo_proc2
*result
;
1345 name
[1] = KERN_PROC2
;
1346 name
[2] = KERN_PROC_ALL
;
1348 name
[4] = sizeof(struct kinfo_proc2
);
1351 struct kinfo_proc
*result
;
1352 static const int name
[] = { CTL_KERN
, KERN_PROC
, KERN_PROC_ALL
, 0 };
1355 mono_once (&process_current_once
, process_set_current
);
1362 #if defined(__OpenBSD__)
1363 size
= (sizeof(name
) / sizeof(*name
));
1365 size
= (sizeof(name
) / sizeof(*name
)) - 1;
1367 err
= sysctl ((int *)name
, size
, NULL
, &proclength
, NULL
, 0);
1370 result
= malloc (proclength
);
1375 #if defined(__OpenBSD__)
1376 name
[5] = (int)(proclength
/ sizeof(struct kinfo_proc2
));
1379 err
= sysctl ((int *) name
, size
, result
, &proclength
, NULL
, 0);
1386 } while (err
== 0 && !done
);
1389 if (result
!= NULL
) {
1396 #if defined(__OpenBSD__)
1397 count
= proclength
/ sizeof(struct kinfo_proc2
);
1399 count
= proclength
/ sizeof(struct kinfo_proc
);
1401 fit
= len
/ sizeof(guint32
);
1402 for (i
= 0, j
= 0; j
< fit
&& i
< count
; i
++) {
1403 #if defined(__OpenBSD__)
1404 pids
[j
++] = result
[i
].p_pid
;
1406 if (result
[i
].kp_proc
.p_pid
> 0) /* Pid 0 not supported */
1407 pids
[j
++] = result
[i
].kp_proc
.p_pid
;
1412 *needed
= j
* sizeof(guint32
);
1416 #elif defined(__HAIKU__)
1418 gboolean
EnumProcesses (guint32
*pids
, guint32 len
, guint32
*needed
)
1424 mono_once (&process_current_once
, process_set_current
);
1426 fit
= len
/ sizeof (guint32
);
1427 while (get_next_team_info (&cookie
, &teamInfo
) == B_OK
&& i
< fit
) {
1428 pids
[i
++] = teamInfo
.team
;
1430 *needed
= i
* sizeof (guint32
);
1435 gboolean
EnumProcesses (guint32
*pids
, guint32 len
, guint32
*needed
)
1439 struct dirent
*entry
;
1441 mono_once (&process_current_once
, process_set_current
);
1443 dir
= opendir ("/proc");
1449 fit
= len
/ sizeof (guint32
);
1450 while(i
< fit
&& (entry
= readdir (dir
)) != NULL
) {
1454 if (!isdigit (entry
->d_name
[0]))
1457 pid
= (pid_t
) strtol (entry
->d_name
, &endptr
, 10);
1458 if (*endptr
== '\0')
1459 pids
[i
++] = (guint32
) pid
;
1462 *needed
= i
* sizeof(guint32
);
1468 static gboolean
process_open_compare (gpointer handle
, gpointer user_data
)
1471 pid_t checking_pid
= signal_process_if_gone (handle
);
1473 if (checking_pid
== 0) {
1477 wanted_pid
= GPOINTER_TO_UINT (user_data
);
1479 /* It's possible to have more than one process handle with the
1480 * same pid, but only the one running process can be
1483 if (checking_pid
== wanted_pid
&&
1484 _wapi_handle_issignalled (handle
) == FALSE
) {
1485 /* If the handle is blown away in the window between
1486 * returning TRUE here and _wapi_search_handle pinging
1487 * the timestamp, the search will continue
1495 gboolean
CloseProcess(gpointer handle
)
1497 if ((GPOINTER_TO_UINT (handle
) & _WAPI_PROCESS_UNHANDLED
) == _WAPI_PROCESS_UNHANDLED
) {
1498 /* This is a pseudo handle */
1502 return CloseHandle (handle
);
1506 * The caller owns the returned handle and must call CloseProcess () on it to clean it up.
1508 gpointer
OpenProcess (guint32 req_access G_GNUC_UNUSED
, gboolean inherit G_GNUC_UNUSED
, guint32 pid
)
1510 /* Find the process handle that corresponds to pid */
1511 gpointer handle
= NULL
;
1513 mono_once (&process_current_once
, process_set_current
);
1515 DEBUG ("%s: looking for process %d", __func__
, pid
);
1517 handle
= _wapi_search_handle (WAPI_HANDLE_PROCESS
,
1518 process_open_compare
,
1519 GUINT_TO_POINTER (pid
), NULL
, TRUE
);
1521 if (is_pid_valid (pid
)) {
1522 /* Return a pseudo handle for processes we
1523 * don't have handles for
1525 return GINT_TO_POINTER (_WAPI_PROCESS_UNHANDLED
+ pid
);
1527 DEBUG ("%s: Can't find pid %d", __func__
, pid
);
1529 SetLastError (ERROR_PROC_NOT_FOUND
);
1535 /* _wapi_search_handle () already added a ref */
1539 gboolean
GetExitCodeProcess (gpointer process
, guint32
*code
)
1541 struct _WapiHandle_process
*process_handle
;
1545 mono_once (&process_current_once
, process_set_current
);
1551 pid
= GPOINTER_TO_UINT (process
) - _WAPI_PROCESS_UNHANDLED
;
1552 if ((GPOINTER_TO_UINT (process
) & _WAPI_PROCESS_UNHANDLED
) == _WAPI_PROCESS_UNHANDLED
) {
1553 /* This is a pseudo handle, so we don't know what the
1554 * exit code was, but we can check whether it's alive or not
1556 if (is_pid_valid (pid
)) {
1557 *code
= STILL_ACTIVE
;
1564 ok
=_wapi_lookup_handle (process
, WAPI_HANDLE_PROCESS
,
1565 (gpointer
*)&process_handle
);
1567 DEBUG ("%s: Can't find process %p", __func__
, process
);
1572 /* A process handle is only signalled if the process has exited
1573 * and has been waited for */
1575 /* Make sure any process exit has been noticed, before
1576 * checking if the process is signalled. Fixes bug 325463.
1578 process_wait (process
, 0, TRUE
);
1580 if (_wapi_handle_issignalled (process
) == TRUE
) {
1581 *code
= process_handle
->exitstatus
;
1583 *code
= STILL_ACTIVE
;
1589 gboolean
GetProcessTimes (gpointer process
, WapiFileTime
*create_time
,
1590 WapiFileTime
*exit_time
, WapiFileTime
*kernel_time
,
1591 WapiFileTime
*user_time
)
1593 struct _WapiHandle_process
*process_handle
;
1595 gboolean ku_times_set
= FALSE
;
1597 mono_once (&process_current_once
, process_set_current
);
1599 if(create_time
==NULL
|| exit_time
==NULL
|| kernel_time
==NULL
||
1601 /* Not sure if w32 allows NULLs here or not */
1605 if ((GPOINTER_TO_UINT (process
) & _WAPI_PROCESS_UNHANDLED
) == _WAPI_PROCESS_UNHANDLED
) {
1606 /* This is a pseudo handle, so just fail for now
1611 ok
=_wapi_lookup_handle (process
, WAPI_HANDLE_PROCESS
,
1612 (gpointer
*)&process_handle
);
1614 DEBUG ("%s: Can't find process %p", __func__
, process
);
1619 *create_time
=process_handle
->create_time
;
1621 /* A process handle is only signalled if the process has
1622 * exited. Otherwise exit_time isn't set
1624 if(_wapi_handle_issignalled (process
)==TRUE
) {
1625 *exit_time
=process_handle
->exit_time
;
1628 #ifdef HAVE_GETRUSAGE
1629 if (process_handle
->id
== getpid ()) {
1630 struct rusage time_data
;
1631 if (getrusage (RUSAGE_SELF
, &time_data
) == 0) {
1633 gint64
*tick_val_ptr
;
1634 ku_times_set
= TRUE
;
1635 tick_val
= time_data
.ru_utime
.tv_sec
* 10000000 + time_data
.ru_utime
.tv_usec
* 10;
1636 tick_val_ptr
= (gint64
*)user_time
;
1637 *tick_val_ptr
= tick_val
;
1638 tick_val
= time_data
.ru_stime
.tv_sec
* 10000000 + time_data
.ru_stime
.tv_usec
* 10;
1639 tick_val_ptr
= (gint64
*)kernel_time
;
1640 *tick_val_ptr
= tick_val
;
1644 if (!ku_times_set
) {
1645 memset (kernel_time
, 0, sizeof (WapiFileTime
));
1646 memset (user_time
, 0, sizeof (WapiFileTime
));
1654 gpointer address_start
;
1655 gpointer address_end
;
1657 gpointer address_offset
;
1663 static void free_procmodule (WapiProcModule
*mod
)
1665 if (mod
->perms
!= NULL
) {
1666 g_free (mod
->perms
);
1668 if (mod
->filename
!= NULL
) {
1669 g_free (mod
->filename
);
1674 static gint
find_procmodule (gconstpointer a
, gconstpointer b
)
1676 WapiProcModule
*want
= (WapiProcModule
*)a
;
1677 WapiProcModule
*compare
= (WapiProcModule
*)b
;
1679 if ((want
->device
== compare
->device
) &&
1680 (want
->inode
== compare
->inode
)) {
1687 #ifdef PLATFORM_MACOSX
1688 #include <mach-o/dyld.h>
1689 #include <mach-o/getsect.h>
1691 static GSList
*load_modules (void)
1694 WapiProcModule
*mod
;
1695 uint32_t count
= _dyld_image_count ();
1698 for (i
= 0; i
< count
; i
++) {
1699 #if SIZEOF_VOID_P == 8
1700 const struct mach_header_64
*hdr
;
1701 const struct section_64
*sec
;
1703 const struct mach_header
*hdr
;
1704 const struct section
*sec
;
1709 slide
= _dyld_get_image_vmaddr_slide (i
);
1710 name
= _dyld_get_image_name (i
);
1711 hdr
= _dyld_get_image_header (i
);
1712 #if SIZEOF_VOID_P == 8
1713 sec
= getsectbynamefromheader_64 (hdr
, SEG_DATA
, SECT_DATA
);
1715 sec
= getsectbynamefromheader (hdr
, SEG_DATA
, SECT_DATA
);
1718 /* Some dynlibs do not have data sections on osx (#533893) */
1723 mod
= g_new0 (WapiProcModule
, 1);
1724 mod
->address_start
= GINT_TO_POINTER (sec
->addr
);
1725 mod
->address_end
= GINT_TO_POINTER (sec
->addr
+sec
->size
);
1726 mod
->perms
= g_strdup ("r--p");
1727 mod
->address_offset
= 0;
1728 mod
->device
= makedev (0, 0);
1729 mod
->inode
= (ino_t
) i
;
1730 mod
->filename
= g_strdup (name
);
1732 if (g_slist_find_custom (ret
, mod
, find_procmodule
) == NULL
) {
1733 ret
= g_slist_prepend (ret
, mod
);
1735 free_procmodule (mod
);
1739 ret
= g_slist_reverse (ret
);
1743 #elif defined(__OpenBSD__)
1745 static int load_modules_callback (struct dl_phdr_info
*info
, size_t size
, void *ptr
)
1747 if (size
< offsetof (struct dl_phdr_info
, dlpi_phnum
)
1748 + sizeof (info
->dlpi_phnum
))
1751 struct dl_phdr_info
*cpy
= calloc(1, sizeof(struct dl_phdr_info
));
1755 memcpy(cpy
, info
, sizeof(*info
));
1757 g_ptr_array_add ((GPtrArray
*)ptr
, cpy
);
1762 static GSList
*load_modules (void)
1765 WapiProcModule
*mod
;
1766 GPtrArray
*dlarray
= g_ptr_array_new();
1769 if (dl_iterate_phdr(load_modules_callback
, dlarray
) < 0)
1772 for (i
= 0; i
< dlarray
->len
; i
++) {
1773 struct dl_phdr_info
*info
= g_ptr_array_index (dlarray
, i
);
1775 mod
= g_new0 (WapiProcModule
, 1);
1776 mod
->address_start
= (gpointer
)(info
->dlpi_addr
+ info
->dlpi_phdr
[0].p_vaddr
);
1777 mod
->address_end
= (gpointer
)(info
->dlpi_addr
+
1778 info
->dlpi_phdr
[info
->dlpi_phnum
- 1].p_vaddr
);
1779 mod
->perms
= g_strdup ("r--p");
1780 mod
->address_offset
= 0;
1781 mod
->inode
= (ino_t
) i
;
1782 mod
->filename
= g_strdup (info
->dlpi_name
);
1784 DEBUG ("%s: inode=%d, filename=%s, address_start=%p, address_end=%p", __func__
,
1785 mod
->inode
, mod
->filename
, mod
->address_start
, mod
->address_end
);
1789 if (g_slist_find_custom (ret
, mod
, find_procmodule
) == NULL
) {
1790 ret
= g_slist_prepend (ret
, mod
);
1792 free_procmodule (mod
);
1796 g_ptr_array_free (dlarray
, TRUE
);
1798 ret
= g_slist_reverse (ret
);
1802 #elif defined(__HAIKU__)
1804 static GSList
*load_modules (void)
1807 WapiProcModule
*mod
;
1809 image_info imageInfo
;
1811 while (get_next_image_info (B_CURRENT_TEAM
, &cookie
, &imageInfo
) == B_OK
) {
1812 mod
= g_new0 (WapiProcModule
, 1);
1813 mod
->device
= imageInfo
.device
;
1814 mod
->inode
= imageInfo
.node
;
1815 mod
->filename
= g_strdup (imageInfo
.name
);
1816 mod
->address_start
= MIN (imageInfo
.text
, imageInfo
.data
);
1817 mod
->address_end
= MAX ((uint8_t*)imageInfo
.text
+ imageInfo
.text_size
,
1818 (uint8_t*)imageInfo
.data
+ imageInfo
.data_size
);
1819 mod
->perms
= g_strdup ("r--p");
1820 mod
->address_offset
= 0;
1822 if (g_slist_find_custom (ret
, mod
, find_procmodule
) == NULL
) {
1823 ret
= g_slist_prepend (ret
, mod
);
1825 free_procmodule (mod
);
1829 ret
= g_slist_reverse (ret
);
1834 static GSList
*load_modules (FILE *fp
)
1837 WapiProcModule
*mod
;
1838 gchar buf
[MAXPATHLEN
+ 1], *p
, *endp
;
1839 gchar
*start_start
, *end_start
, *prot_start
, *offset_start
;
1840 gchar
*maj_dev_start
, *min_dev_start
, *inode_start
, prot_buf
[5];
1841 gpointer address_start
, address_end
, address_offset
;
1842 guint32 maj_dev
, min_dev
;
1846 while (fgets (buf
, sizeof(buf
), fp
)) {
1848 while (g_ascii_isspace (*p
)) ++p
;
1850 if (!g_ascii_isxdigit (*start_start
)) {
1853 address_start
= (gpointer
)strtoul (start_start
, &endp
, 16);
1861 if (!g_ascii_isxdigit (*end_start
)) {
1864 address_end
= (gpointer
)strtoul (end_start
, &endp
, 16);
1866 if (!g_ascii_isspace (*p
)) {
1870 while (g_ascii_isspace (*p
)) ++p
;
1872 if (*prot_start
!= 'r' && *prot_start
!= '-') {
1875 memcpy (prot_buf
, prot_start
, 4);
1877 while (!g_ascii_isspace (*p
)) ++p
;
1879 while (g_ascii_isspace (*p
)) ++p
;
1881 if (!g_ascii_isxdigit (*offset_start
)) {
1884 address_offset
= (gpointer
)strtoul (offset_start
, &endp
, 16);
1886 if (!g_ascii_isspace (*p
)) {
1890 while(g_ascii_isspace (*p
)) ++p
;
1892 if (!g_ascii_isxdigit (*maj_dev_start
)) {
1895 maj_dev
= strtoul (maj_dev_start
, &endp
, 16);
1903 if (!g_ascii_isxdigit (*min_dev_start
)) {
1906 min_dev
= strtoul (min_dev_start
, &endp
, 16);
1908 if (!g_ascii_isspace (*p
)) {
1912 while (g_ascii_isspace (*p
)) ++p
;
1914 if (!g_ascii_isxdigit (*inode_start
)) {
1917 inode
= (ino_t
)strtol (inode_start
, &endp
, 10);
1919 if (!g_ascii_isspace (*p
)) {
1923 device
= makedev ((int)maj_dev
, (int)min_dev
);
1924 if ((device
== 0) &&
1929 while(g_ascii_isspace (*p
)) ++p
;
1930 /* p now points to the filename */
1932 mod
= g_new0 (WapiProcModule
, 1);
1933 mod
->address_start
= address_start
;
1934 mod
->address_end
= address_end
;
1935 mod
->perms
= g_strdup (prot_buf
);
1936 mod
->address_offset
= address_offset
;
1937 mod
->device
= device
;
1939 mod
->filename
= g_strdup (g_strstrip (p
));
1941 if (g_slist_find_custom (ret
, mod
, find_procmodule
) == NULL
) {
1942 ret
= g_slist_prepend (ret
, mod
);
1944 free_procmodule (mod
);
1948 ret
= g_slist_reverse (ret
);
1954 static gboolean
match_procname_to_modulename (gchar
*procname
, gchar
*modulename
)
1956 char* lastsep
= NULL
;
1957 char* lastsep2
= NULL
;
1960 gboolean result
= FALSE
;
1962 if (procname
== NULL
|| modulename
== NULL
)
1965 pname
= mono_path_resolve_symlinks (procname
);
1966 mname
= mono_path_resolve_symlinks (modulename
);
1968 if (!strcmp (pname
, mname
))
1972 lastsep
= strrchr (mname
, '/');
1974 if (!strcmp (lastsep
+1, pname
))
1977 lastsep2
= strrchr (pname
, '/');
1980 if (!strcmp (lastsep
+1, lastsep2
+1))
1983 if (!strcmp (mname
, lastsep2
+1))
1996 #if !defined(__OpenBSD__)
1998 open_process_map (int pid
, const char *mode
)
2001 const gchar
*proc_path
[] = {
2002 "/proc/%d/maps", /* GNU/Linux */
2003 "/proc/%d/map", /* FreeBSD */
2009 for (i
= 0; fp
== NULL
&& proc_path
[i
]; i
++) {
2010 filename
= g_strdup_printf (proc_path
[i
], pid
);
2011 fp
= fopen (filename
, mode
);
2019 gboolean
EnumProcessModules (gpointer process
, gpointer
*modules
,
2020 guint32 size
, guint32
*needed
)
2022 struct _WapiHandle_process
*process_handle
;
2024 #if !defined(__OpenBSD__) && !defined(PLATFORM_MACOSX)
2027 GSList
*mods
= NULL
;
2028 WapiProcModule
*module
;
2029 guint32 count
, avail
= size
/ sizeof(gpointer
);
2032 gchar
*proc_name
= NULL
;
2034 /* Store modules in an array of pointers (main module as
2035 * modules[0]), using the load address for each module as a
2036 * token. (Use 'NULL' as an alternative for the main module
2037 * so that the simple implementation can just return one item
2038 * for now.) Get the info from /proc/<pid>/maps on linux,
2039 * /proc/<pid>/map on FreeBSD, other systems will have to
2040 * implement /dev/kmem reading or whatever other horrid
2041 * technique is needed.
2043 if (size
< sizeof(gpointer
)) {
2047 if ((GPOINTER_TO_UINT (process
) & _WAPI_PROCESS_UNHANDLED
) == _WAPI_PROCESS_UNHANDLED
) {
2048 /* This is a pseudo handle */
2049 pid
= (pid_t
)(GPOINTER_TO_UINT (process
) & _WAPI_PROCESS_UNHANDLED_PID_MASK
);
2051 ok
= _wapi_lookup_handle (process
, WAPI_HANDLE_PROCESS
,
2052 (gpointer
*)&process_handle
);
2054 DEBUG ("%s: Can't find process %p", __func__
, process
);
2058 pid
= process_handle
->id
;
2059 proc_name
= process_handle
->proc_name
;
2062 #if defined(PLATFORM_MACOSX) || defined(__OpenBSD__) || defined(__HAIKU__)
2064 mods
= load_modules ();
2066 if ((fp
= open_process_map (pid
, "r")) == NULL
) {
2067 /* No /proc/<pid>/maps so just return the main module
2071 *needed
= sizeof(gpointer
);
2073 mods
= load_modules (fp
);
2076 count
= g_slist_length (mods
);
2078 /* count + 1 to leave slot 0 for the main module */
2079 *needed
= sizeof(gpointer
) * (count
+ 1);
2081 /* Use the NULL shortcut, as the first line in
2082 * /proc/<pid>/maps isn't the executable, and we need
2083 * that first in the returned list. Check the module name
2084 * to see if it ends with the proc name and substitute
2085 * the first entry with it. FIXME if this turns out to
2089 for (i
= 0; i
< (avail
- 1) && i
< count
; i
++) {
2090 module
= (WapiProcModule
*)g_slist_nth_data (mods
, i
);
2091 if (modules
[0] != NULL
)
2092 modules
[i
] = module
->address_start
;
2093 else if (match_procname_to_modulename (proc_name
, module
->filename
))
2094 modules
[0] = module
->address_start
;
2096 modules
[i
+ 1] = module
->address_start
;
2099 for (i
= 0; i
< count
; i
++) {
2100 free_procmodule (g_slist_nth_data (mods
, i
));
2102 g_slist_free (mods
);
2108 static gchar
*get_process_name_from_proc (pid_t pid
)
2110 #if defined(__OpenBSD__)
2113 struct kinfo_proc2
*pi
;
2114 #elif defined(PLATFORM_MACOSX)
2116 struct kinfo_proc
*pi
;
2117 int mib
[] = { CTL_KERN
, KERN_PROC
, KERN_PROC_PID
, pid
};
2120 gchar
*filename
= NULL
;
2125 #if defined(PLATFORM_SOLARIS)
2126 filename
= g_strdup_printf ("/proc/%d/psinfo", pid
);
2127 if ((fp
= fopen (filename
, "r")) != NULL
) {
2131 nread
= fread (&info
, sizeof (info
), 1, fp
);
2133 ret
= g_strdup (info
.pr_fname
);
2139 #elif defined(PLATFORM_MACOSX)
2140 #if !defined (__mono_ppc__) && defined (TARGET_OSX)
2141 /* No proc name on OSX < 10.5 nor ppc nor iOS */
2142 memset (buf
, '\0', sizeof(buf
));
2143 proc_name (pid
, buf
, sizeof(buf
));
2144 if (strlen (buf
) > 0)
2145 ret
= g_strdup (buf
);
2147 if (sysctl(mib
, 4, NULL
, &size
, NULL
, 0) < 0)
2150 if ((pi
= malloc(size
)) == NULL
)
2153 if (sysctl (mib
, 4, pi
, &size
, NULL
, 0) < 0) {
2154 if (errno
== ENOMEM
) {
2156 DEBUG ("%s: Didn't allocate enough memory for kproc info", __func__
);
2161 if (strlen (pi
->kp_proc
.p_comm
) > 0)
2162 ret
= g_strdup (pi
->kp_proc
.p_comm
);
2166 #elif defined(__OpenBSD__)
2168 mib
[1] = KERN_PROC2
;
2169 mib
[2] = KERN_PROC_PID
;
2171 mib
[4] = sizeof(struct kinfo_proc2
);
2175 if (sysctl(mib
, 6, NULL
, &size
, NULL
, 0) < 0)
2178 if ((pi
= malloc(size
)) == NULL
)
2181 mib
[5] = (int)(size
/ sizeof(struct kinfo_proc2
));
2183 if ((sysctl (mib
, 6, pi
, &size
, NULL
, 0) < 0) ||
2184 (size
!= sizeof (struct kinfo_proc2
))) {
2185 if (errno
== ENOMEM
) {
2192 if (strlen (pi
->p_comm
) > 0)
2193 ret
= g_strdup (pi
->p_comm
);
2196 #elif defined(__HAIKU__)
2197 image_info imageInfo
;
2200 if (get_next_image_info ((team_id
)pid
, &cookie
, &imageInfo
) == B_OK
) {
2201 ret
= g_strdup (imageInfo
.name
);
2204 memset (buf
, '\0', sizeof(buf
));
2205 filename
= g_strdup_printf ("/proc/%d/exe", pid
);
2206 if (readlink (filename
, buf
, 255) > 0) {
2207 ret
= g_strdup (buf
);
2215 filename
= g_strdup_printf ("/proc/%d/cmdline", pid
);
2216 if ((fp
= fopen (filename
, "r")) != NULL
) {
2217 if (fgets (buf
, 256, fp
) != NULL
) {
2218 ret
= g_strdup (buf
);
2229 filename
= g_strdup_printf ("/proc/%d/stat", pid
);
2230 if ((fp
= fopen (filename
, "r")) != NULL
) {
2231 if (fgets (buf
, 256, fp
) != NULL
) {
2234 start
= strchr (buf
, '(');
2235 if (start
!= NULL
) {
2236 end
= strchr (start
+ 1, ')');
2239 ret
= g_strndup (start
+ 1,
2253 static guint32
get_module_name (gpointer process
, gpointer module
,
2254 gunichar2
*basename
, guint32 size
,
2257 struct _WapiHandle_process
*process_handle
;
2260 gunichar2
*procname
;
2261 gchar
*procname_ext
= NULL
;
2264 #if !defined(__OpenBSD__) && !defined(PLATFORM_MACOSX)
2267 GSList
*mods
= NULL
;
2268 WapiProcModule
*found_module
;
2271 gchar
*proc_name
= NULL
;
2273 mono_once (&process_current_once
, process_set_current
);
2275 DEBUG ("%s: Getting module base name, process handle %p module %p",
2276 __func__
, process
, module
);
2278 size
= size
*sizeof(gunichar2
); /* adjust for unicode characters */
2280 if (basename
== NULL
|| size
== 0) {
2284 if ((GPOINTER_TO_UINT (process
) & _WAPI_PROCESS_UNHANDLED
) == _WAPI_PROCESS_UNHANDLED
) {
2285 /* This is a pseudo handle */
2286 pid
= (pid_t
)(GPOINTER_TO_UINT (process
) & _WAPI_PROCESS_UNHANDLED_PID_MASK
);
2287 proc_name
= get_process_name_from_proc (pid
);
2289 ok
= _wapi_lookup_handle (process
, WAPI_HANDLE_PROCESS
,
2290 (gpointer
*)&process_handle
);
2292 DEBUG ("%s: Can't find process %p", __func__
,
2297 pid
= process_handle
->id
;
2298 proc_name
= g_strdup (process_handle
->proc_name
);
2301 /* Look up the address in /proc/<pid>/maps */
2302 #if defined(PLATFORM_MACOSX) || defined(__OpenBSD__) || defined(__HAIKU__)
2304 mods
= load_modules ();
2306 if ((fp
= open_process_map (pid
, "r")) == NULL
) {
2307 if (errno
== EACCES
&& module
== NULL
&& base
== TRUE
) {
2308 procname_ext
= get_process_name_from_proc (pid
);
2310 /* No /proc/<pid>/maps, so just return failure
2317 mods
= load_modules (fp
);
2320 count
= g_slist_length (mods
);
2322 /* If module != NULL compare the address.
2323 * If module == NULL we are looking for the main module.
2324 * The best we can do for now check it the module name end with the process name.
2326 for (i
= 0; i
< count
; i
++) {
2327 found_module
= (WapiProcModule
*)g_slist_nth_data (mods
, i
);
2328 if (procname_ext
== NULL
&&
2329 ((module
== NULL
&& match_procname_to_modulename (proc_name
, found_module
->filename
)) ||
2330 (module
!= NULL
&& found_module
->address_start
== module
))) {
2332 procname_ext
= g_path_get_basename (found_module
->filename
);
2334 procname_ext
= g_strdup (found_module
->filename
);
2338 free_procmodule (found_module
);
2341 if (procname_ext
== NULL
)
2343 /* If it's *still* null, we might have hit the
2344 * case where reading /proc/$pid/maps gives an
2345 * empty file for this user.
2347 procname_ext
= get_process_name_from_proc (pid
);
2350 g_slist_free (mods
);
2354 if (procname_ext
!= NULL
) {
2355 DEBUG ("%s: Process name is [%s]", __func__
,
2358 procname
= mono_unicode_from_external (procname_ext
, &bytes
);
2359 if (procname
== NULL
) {
2361 g_free (procname_ext
);
2367 /* Add the terminator */
2371 DEBUG ("%s: Size %d smaller than needed (%ld); truncating", __func__
, size
, bytes
);
2373 memcpy (basename
, procname
, size
);
2375 DEBUG ("%s: Size %d larger than needed (%ld)",
2376 __func__
, size
, bytes
);
2378 memcpy (basename
, procname
, bytes
);
2382 g_free (procname_ext
);
2390 guint32
GetModuleBaseName (gpointer process
, gpointer module
,
2391 gunichar2
*basename
, guint32 size
)
2393 return(get_module_name (process
, module
, basename
, size
, TRUE
));
2396 guint32
GetModuleFileNameEx (gpointer process
, gpointer module
,
2397 gunichar2
*filename
, guint32 size
)
2399 return(get_module_name (process
, module
, filename
, size
, FALSE
));
2402 gboolean
GetModuleInformation (gpointer process
, gpointer module
,
2403 WapiModuleInfo
*modinfo
, guint32 size
)
2405 struct _WapiHandle_process
*process_handle
;
2408 #if !defined(__OpenBSD__) && !defined(PLATFORM_MACOSX)
2411 GSList
*mods
= NULL
;
2412 WapiProcModule
*found_module
;
2415 gboolean ret
= FALSE
;
2416 gchar
*proc_name
= NULL
;
2418 mono_once (&process_current_once
, process_set_current
);
2420 DEBUG ("%s: Getting module info, process handle %p module %p",
2421 __func__
, process
, module
);
2423 if (modinfo
== NULL
|| size
< sizeof(WapiModuleInfo
)) {
2427 if ((GPOINTER_TO_UINT (process
) & _WAPI_PROCESS_UNHANDLED
) == _WAPI_PROCESS_UNHANDLED
) {
2428 /* This is a pseudo handle */
2429 pid
= (pid_t
)(GPOINTER_TO_UINT (process
) & _WAPI_PROCESS_UNHANDLED_PID_MASK
);
2430 proc_name
= get_process_name_from_proc (pid
);
2432 ok
= _wapi_lookup_handle (process
, WAPI_HANDLE_PROCESS
,
2433 (gpointer
*)&process_handle
);
2435 DEBUG ("%s: Can't find process %p", __func__
,
2440 pid
= process_handle
->id
;
2441 proc_name
= g_strdup (process_handle
->proc_name
);
2444 #if defined(PLATFORM_MACOSX) || defined(__OpenBSD__) || defined(__HAIKU__)
2446 mods
= load_modules ();
2448 /* Look up the address in /proc/<pid>/maps */
2449 if ((fp
= open_process_map (pid
, "r")) == NULL
) {
2450 /* No /proc/<pid>/maps, so just return failure
2456 mods
= load_modules (fp
);
2459 count
= g_slist_length (mods
);
2461 /* If module != NULL compare the address.
2462 * If module == NULL we are looking for the main module.
2463 * The best we can do for now check it the module name end with the process name.
2465 for (i
= 0; i
< count
; i
++) {
2466 found_module
= (WapiProcModule
*)g_slist_nth_data (mods
, i
);
2467 if ( ret
== FALSE
&&
2468 ((module
== NULL
&& match_procname_to_modulename (proc_name
, found_module
->filename
)) ||
2469 (module
!= NULL
&& found_module
->address_start
== module
))) {
2470 modinfo
->lpBaseOfDll
= found_module
->address_start
;
2471 modinfo
->SizeOfImage
= (gsize
)(found_module
->address_end
) - (gsize
)(found_module
->address_start
);
2472 modinfo
->EntryPoint
= found_module
->address_offset
;
2476 free_procmodule (found_module
);
2479 g_slist_free (mods
);
2486 gboolean
GetProcessWorkingSetSize (gpointer process
, size_t *min
, size_t *max
)
2488 struct _WapiHandle_process
*process_handle
;
2491 mono_once (&process_current_once
, process_set_current
);
2493 if(min
==NULL
|| max
==NULL
) {
2494 /* Not sure if w32 allows NULLs here or not */
2498 if ((GPOINTER_TO_UINT (process
) & _WAPI_PROCESS_UNHANDLED
) == _WAPI_PROCESS_UNHANDLED
) {
2499 /* This is a pseudo handle, so just fail for now
2504 ok
=_wapi_lookup_handle (process
, WAPI_HANDLE_PROCESS
,
2505 (gpointer
*)&process_handle
);
2507 DEBUG ("%s: Can't find process %p", __func__
, process
);
2512 *min
=process_handle
->min_working_set
;
2513 *max
=process_handle
->max_working_set
;
2518 gboolean
SetProcessWorkingSetSize (gpointer process
, size_t min
, size_t max
)
2520 struct _WapiHandle_process
*process_handle
;
2523 mono_once (&process_current_once
, process_set_current
);
2525 if ((GPOINTER_TO_UINT (process
) & _WAPI_PROCESS_UNHANDLED
) == _WAPI_PROCESS_UNHANDLED
) {
2526 /* This is a pseudo handle, so just fail for now
2531 ok
=_wapi_lookup_handle (process
, WAPI_HANDLE_PROCESS
,
2532 (gpointer
*)&process_handle
);
2534 DEBUG ("%s: Can't find process %p", __func__
, process
);
2539 process_handle
->min_working_set
=min
;
2540 process_handle
->max_working_set
=max
;
2547 TerminateProcess (gpointer process
, gint32 exitCode
)
2549 struct _WapiHandle_process
*process_handle
;
2555 if ((GPOINTER_TO_UINT (process
) & _WAPI_PROCESS_UNHANDLED
) == _WAPI_PROCESS_UNHANDLED
) {
2556 /* This is a pseudo handle */
2557 pid
= (pid_t
)(GPOINTER_TO_UINT (process
) & _WAPI_PROCESS_UNHANDLED_PID_MASK
);
2559 ok
= _wapi_lookup_handle (process
, WAPI_HANDLE_PROCESS
,
2560 (gpointer
*) &process_handle
);
2563 DEBUG ("%s: Can't find process %p", __func__
,
2565 SetLastError (ERROR_INVALID_HANDLE
);
2568 pid
= process_handle
->id
;
2571 signo
= (exitCode
== -1) ? SIGKILL
: SIGTERM
;
2572 ret
= kill (pid
, signo
);
2576 SetLastError (ERROR_INVALID_PARAMETER
);
2579 SetLastError (ERROR_ACCESS_DENIED
);
2582 SetLastError (ERROR_PROC_NOT_FOUND
);
2585 SetLastError (ERROR_GEN_FAILURE
);
2593 GetPriorityClass (gpointer process
)
2595 #ifdef HAVE_GETPRIORITY
2596 struct _WapiHandle_process
*process_handle
;
2601 if ((GPOINTER_TO_UINT (process
) & _WAPI_PROCESS_UNHANDLED
) == _WAPI_PROCESS_UNHANDLED
) {
2602 /* This is a pseudo handle */
2603 pid
= (pid_t
)(GPOINTER_TO_UINT (process
) & _WAPI_PROCESS_UNHANDLED_PID_MASK
);
2605 ok
= _wapi_lookup_handle (process
, WAPI_HANDLE_PROCESS
,
2606 (gpointer
*) &process_handle
);
2609 SetLastError (ERROR_INVALID_HANDLE
);
2612 pid
= process_handle
->id
;
2616 ret
= getpriority (PRIO_PROCESS
, pid
);
2617 if (ret
== -1 && errno
!= 0) {
2621 SetLastError (ERROR_ACCESS_DENIED
);
2624 SetLastError (ERROR_PROC_NOT_FOUND
);
2627 SetLastError (ERROR_GEN_FAILURE
);
2633 return NORMAL_PRIORITY_CLASS
;
2635 return REALTIME_PRIORITY_CLASS
;
2637 return HIGH_PRIORITY_CLASS
;
2639 return ABOVE_NORMAL_PRIORITY_CLASS
;
2641 return IDLE_PRIORITY_CLASS
;
2643 return BELOW_NORMAL_PRIORITY_CLASS
;
2645 return NORMAL_PRIORITY_CLASS
;
2647 SetLastError (ERROR_NOT_SUPPORTED
);
2653 SetPriorityClass (gpointer process
, guint32 priority_class
)
2655 #ifdef HAVE_SETPRIORITY
2656 struct _WapiHandle_process
*process_handle
;
2662 if ((GPOINTER_TO_UINT (process
) & _WAPI_PROCESS_UNHANDLED
) == _WAPI_PROCESS_UNHANDLED
) {
2663 /* This is a pseudo handle */
2664 pid
= (pid_t
)(GPOINTER_TO_UINT (process
) & _WAPI_PROCESS_UNHANDLED_PID_MASK
);
2666 ok
= _wapi_lookup_handle (process
, WAPI_HANDLE_PROCESS
,
2667 (gpointer
*) &process_handle
);
2670 SetLastError (ERROR_INVALID_HANDLE
);
2673 pid
= process_handle
->id
;
2676 switch (priority_class
) {
2677 case IDLE_PRIORITY_CLASS
:
2680 case BELOW_NORMAL_PRIORITY_CLASS
:
2683 case NORMAL_PRIORITY_CLASS
:
2686 case ABOVE_NORMAL_PRIORITY_CLASS
:
2689 case HIGH_PRIORITY_CLASS
:
2692 case REALTIME_PRIORITY_CLASS
:
2696 SetLastError (ERROR_INVALID_PARAMETER
);
2700 ret
= setpriority (PRIO_PROCESS
, pid
, prio
);
2705 SetLastError (ERROR_ACCESS_DENIED
);
2708 SetLastError (ERROR_PROC_NOT_FOUND
);
2711 SetLastError (ERROR_GEN_FAILURE
);
2717 SetLastError (ERROR_NOT_SUPPORTED
);
2723 mono_processes_cleanup (void)
2725 struct MonoProcess
*mp
;
2726 struct MonoProcess
*prev
= NULL
;
2727 struct MonoProcess
*candidate
= NULL
;
2728 gpointer unref_handle
;
2731 DEBUG ("%s", __func__
);
2733 /* Ensure we're not in here in multiple threads at once, nor recursive. */
2734 if (InterlockedCompareExchange (&mono_processes_cleaning_up
, 1, 0) != 0)
2737 mp
= mono_processes
;
2738 while (mp
!= NULL
) {
2739 if (mp
->pid
== 0 && mp
->handle
!= NULL
) {
2740 /* This process has exited and we need to remove the artifical ref
2742 mono_mutex_lock (&mono_processes_mutex
);
2743 unref_handle
= mp
->handle
;
2745 mono_mutex_unlock (&mono_processes_mutex
);
2747 _wapi_handle_unref (unref_handle
);
2753 mp
= mono_processes
;
2755 while (mp
!= NULL
) {
2756 if ((mp
->handle_count
== 0 && mp
->pid
== 0) || candidate
!= NULL
) {
2758 _wapi_handle_spin (spin
);
2762 /* We've found a candidate */
2763 mono_mutex_lock (&mono_processes_mutex
);
2764 if (candidate
== NULL
) {
2766 if (mp
== mono_processes
) {
2767 mono_processes
= mp
->next
;
2769 prev
->next
= mp
->next
;
2774 /* It's still safe to traverse the structure.*/
2775 mono_memory_barrier ();
2777 if (mono_processes_read_lock
!= 0) {
2778 /* The sigchld handler is watching us. Spin a bit and try again */
2781 } else if (spin
>= 8) {
2782 /* Just give up for now */
2783 mono_mutex_unlock (&mono_processes_mutex
);
2787 /* We've modified the list of processes, and we know the sigchld handler
2788 * isn't executing, so even if it executes at any moment, it'll see the
2789 * new version of the list. So now we can free the candidate. */
2790 DEBUG ("%s: freeing candidate %p", __func__
, candidate
);
2791 mp
= candidate
->next
;
2792 MONO_SEM_DESTROY (&candidate
->exit_sem
);
2797 mono_mutex_unlock (&mono_processes_mutex
);
2806 DEBUG ("%s done", __func__
);
2808 InterlockedDecrement (&mono_processes_cleaning_up
);
2812 process_close (gpointer handle
, gpointer data
)
2814 struct _WapiHandle_process
*process_handle
;
2816 DEBUG ("%s", __func__
);
2818 process_handle
= (struct _WapiHandle_process
*) data
;
2819 if (process_handle
->mono_process
&& process_handle
->self
== _wapi_getpid ())
2820 InterlockedDecrement (&process_handle
->mono_process
->handle_count
);
2821 mono_processes_cleanup ();
2826 mono_sigchld_signal_handler (int _dummy
, siginfo_t
*info
, void *context
)
2830 struct MonoProcess
*p
;
2833 fprintf (stdout
, "SIG CHILD handler for pid: %i\n", info
->si_pid
);
2836 InterlockedIncrement (&mono_processes_read_lock
);
2840 pid
= waitpid (-1, &status
, WNOHANG
);
2841 } while (pid
== -1 && errno
== EINTR
);
2847 fprintf (stdout
, "child ended: %i", pid
);
2851 if (p
->pid
== pid
) {
2852 p
->pid
= 0; /* this pid doesn't exist anymore, clear it */
2854 MONO_SEM_POST (&p
->exit_sem
);
2861 InterlockedDecrement (&mono_processes_read_lock
);
2864 fprintf (stdout
, "SIG CHILD handler: done looping.");
2869 static void process_add_sigchld_handler (void)
2872 struct sigaction sa
;
2874 sa
.sa_sigaction
= mono_sigchld_signal_handler
;
2875 sigemptyset (&sa
.sa_mask
);
2876 sa
.sa_flags
= SA_NOCLDSTOP
| SA_SIGINFO
;
2877 g_assert (sigaction (SIGCHLD
, &sa
, &previous_chld_sa
) != -1);
2878 DEBUG ("Added SIGCHLD handler");
2882 static guint32
process_wait (gpointer handle
, guint32 timeout
, gboolean alertable
)
2884 struct _WapiHandle_process
*process_handle
;
2890 struct MonoProcess
*mp
;
2892 gpointer current_thread
;
2894 current_thread
= _wapi_thread_handle_from_id (pthread_self ());
2895 if (current_thread
== NULL
) {
2896 SetLastError (ERROR_INVALID_HANDLE
);
2900 /* FIXME: We can now easily wait on processes that aren't our own children,
2901 * but WaitFor*Object won't call us for pseudo handles. */
2902 g_assert ((GPOINTER_TO_UINT (handle
) & _WAPI_PROCESS_UNHANDLED
) != _WAPI_PROCESS_UNHANDLED
);
2904 DEBUG ("%s (%p, %u)", __func__
, handle
, timeout
);
2906 ok
= _wapi_lookup_handle (handle
, WAPI_HANDLE_PROCESS
, (gpointer
*)&process_handle
);
2908 g_warning ("%s: error looking up process handle %p", __func__
, handle
);
2912 if (process_handle
->exited
) {
2913 /* We've already done this one */
2914 DEBUG ("%s (%p, %u): Process already exited", __func__
, handle
, timeout
);
2915 return WAIT_OBJECT_0
;
2918 pid
= process_handle
->id
;
2920 DEBUG ("%s (%p, %u): PID: %d", __func__
, handle
, timeout
, pid
);
2922 /* We don't need to lock mono_processes here, the entry
2923 * has a handle_count > 0 which means it will not be freed. */
2924 mp
= process_handle
->mono_process
;
2925 if (mp
&& process_handle
->self
!= _wapi_getpid ()) {
2926 /* mono_process points to memory in another process' address space: we can't use it */
2930 start
= mono_msec_ticks ();
2936 /* We have a semaphore we can wait on */
2937 if (timeout
!= INFINITE
) {
2938 DEBUG ("%s (%p, %u): waiting on semaphore for %li ms...",
2939 __func__
, handle
, timeout
, (timeout
- (now
- start
)));
2941 ret
= MONO_SEM_TIMEDWAIT_ALERTABLE (&mp
->exit_sem
, (timeout
- (now
- start
)), alertable
);
2943 DEBUG ("%s (%p, %u): waiting on semaphore forever...",
2944 __func__
, handle
, timeout
);
2945 ret
= MONO_SEM_WAIT_ALERTABLE (&mp
->exit_sem
, alertable
);
2948 if (ret
== -1 && errno
!= EINTR
&& errno
!= ETIMEDOUT
) {
2949 DEBUG ("%s (%p, %u): sem_timedwait failure: %s",
2950 __func__
, handle
, timeout
, g_strerror (errno
));
2951 /* Should we return a failure here? */
2955 /* Success, process has exited */
2956 MONO_SEM_POST (&mp
->exit_sem
);
2960 /* We did not create this process, so we can't waidpid / sem_wait it.
2961 * We need to poll for the pid existence */
2962 DEBUG ("%s (%p, %u): polling on pid...", __func__
, handle
, timeout
);
2963 if (!is_pid_valid (pid
)) {
2964 /* Success, process has exited */
2970 DEBUG ("%s (%p, %u): WAIT_TIMEOUT (timeout = 0)", __func__
, handle
, timeout
);
2971 return WAIT_TIMEOUT
;
2974 now
= mono_msec_ticks ();
2975 if (now
- start
>= timeout
) {
2976 DEBUG ("%s (%p, %u): WAIT_TIMEOUT", __func__
, handle
, timeout
);
2977 return WAIT_TIMEOUT
;
2981 /* "timeout - (now - start)" will not underflow, since timeout is always >=0,
2982 * and we passed the check just above */
2983 _wapi_handle_spin (MIN (100, timeout
- (now
- start
)));
2986 if (alertable
&& _wapi_thread_apc_pending (current_thread
)) {
2987 DEBUG ("%s (%p, %u): WAIT_IO_COMPLETION", __func__
, handle
, timeout
);
2988 return WAIT_IO_COMPLETION
;
2992 /* Process must have exited */
2993 DEBUG ("%s (%p, %u): Waited successfully", __func__
, handle
, timeout
);
2995 ret
= _wapi_handle_lock_shared_handles ();
2996 g_assert (ret
== 0);
2998 status
= mp
? mp
->status
: 0;
2999 if (WIFSIGNALED (status
)) {
3000 process_handle
->exitstatus
= 128 + WTERMSIG (status
);
3002 process_handle
->exitstatus
= WEXITSTATUS (status
);
3004 _wapi_time_t_to_filetime (time (NULL
), &process_handle
->exit_time
);
3006 process_handle
->exited
= TRUE
;
3008 DEBUG ("%s (%p, %u): Setting pid %d signalled, exit status %d",
3009 __func__
, handle
, timeout
, process_handle
->id
, process_handle
->exitstatus
);
3011 _wapi_shared_handle_set_signal_state (handle
, TRUE
);
3013 _wapi_handle_unlock_shared_handles ();
3015 return WAIT_OBJECT_0
;