1 /* Definitions for managing subprocesses in GNU Make.
2 Copyright (C) 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001,
3 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010 Free Software
5 This file is part of GNU Make.
7 GNU Make is free software; you can redistribute it and/or modify it under the
8 terms of the GNU General Public License as published by the Free Software
9 Foundation; either version 3 of the License, or (at your option) any later
12 GNU Make is distributed in the hope that it will be useful, but WITHOUT ANY
13 WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
14 A PARTICULAR PURPOSE. See the GNU General Public License for more details.
16 You should have received a copy of the GNU General Public License along with
17 this program. If not, see <http://www.gnu.org/licenses/>. */
25 # include <sys/file.h>
28 /* How to set close-on-exec for a file descriptor. */
31 # define CLOSE_ON_EXEC(_d)
36 # define CLOSE_ON_EXEC(_d) (void) fcntl ((_d), F_SETFD, FD_CLOEXEC)
39 /* Structure describing a running or dead child process. */
43 struct child
*next
; /* Link in the chain. */
45 struct file
*file
; /* File being remade. */
47 char **environment
; /* Environment for commands. */
49 char **command_lines
; /* Array of variable-expanded cmd lines. */
50 unsigned int command_line
; /* Index into above. */
51 char *command_ptr
; /* Ptr into command_lines[command_line]. */
53 pid_t pid
; /* Child process's ID number. */
55 int efn
; /* Completion event flag number */
56 int cstatus
; /* Completion status */
57 char *comname
; /* Temporary command file name */
59 char *sh_batch_file
; /* Script file for shell commands */
60 unsigned int remote
:1; /* Nonzero if executing remotely. */
62 unsigned int noerror
:1; /* Nonzero if commands contained a `-'. */
64 unsigned int good_stdin
:1; /* Nonzero if this child has a good stdin. */
65 unsigned int deleted
:1; /* Nonzero if targets have been deleted. */
66 unsigned int dontcare
:1; /* Saved dontcare flag. */
69 extern struct child
*children
;
71 int is_bourne_compatible_shell(const char *path
);
72 void new_job (struct file
*file
);
73 void reap_children (int block
, int err
);
74 void start_waiting_jobs (void);
76 char **construct_command_argv (char *line
, char **restp
, struct file
*file
,
77 int cmd_flags
, char** batch_file
);
79 int child_execute_job (char *argv
, struct child
*child
);
80 #elif defined(__EMX__)
81 int child_execute_job (int stdin_fd
, int stdout_fd
, char **argv
, char **envp
);
83 void child_execute_job (int stdin_fd
, int stdout_fd
, char **argv
, char **envp
);
86 void exec_command (char **argv
);
87 #elif defined(__EMX__)
88 int exec_command (char **argv
, char **envp
);
90 void exec_command (char **argv
, char **envp
);
93 extern unsigned int job_slots_used
;
95 void block_sigs (void);
97 void unblock_sigs (void);
99 #ifdef HAVE_SIGSETMASK
100 extern int fatal_signal_mask
;
101 #define unblock_sigs() sigsetmask (0)
103 #define unblock_sigs()
107 extern unsigned int jobserver_tokens
;
109 #endif /* SEEN_JOB_H */