.
[make.git] / job.h
blobca7ad1dcad27898dd0d696e56c23f7585b2b4815
1 /* Definitions for managing subprocesses in GNU Make.
2 Copyright (C) 1992, 1993, 1996 Free Software Foundation, Inc.
3 This file is part of GNU Make.
5 GNU Make is free software; you can redistribute it and/or modify
6 it under the terms of the GNU General Public License as published by
7 the Free Software Foundation; either version 2, or (at your option)
8 any later version.
10 GNU Make is distributed in the hope that it will be useful,
11 but WITHOUT ANY WARRANTY; without even the implied warranty of
12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13 GNU General Public License for more details.
15 You should have received a copy of the GNU General Public License
16 along with GNU Make; see the file COPYING. If not, write to
17 the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA. */
19 #ifndef SEEN_JOB_H
20 #define SEEN_JOB_H
22 /* Structure describing a running or dead child process. */
24 struct child
26 struct child *next; /* Link in the chain. */
28 struct file *file; /* File being remade. */
30 char **environment; /* Environment for commands. */
32 char **command_lines; /* Array of variable-expanded cmd lines. */
33 unsigned int command_line; /* Index into above. */
34 char *command_ptr; /* Ptr into command_lines[command_line]. */
36 pid_t pid; /* Child process's ID number. */
37 #ifdef VMS
38 int efn; /* Completion event flag number */
39 int cstatus; /* Completion status */
40 #endif
41 unsigned int remote:1; /* Nonzero if executing remotely. */
43 unsigned int noerror:1; /* Nonzero if commands contained a `-'. */
45 unsigned int good_stdin:1; /* Nonzero if this child has a good stdin. */
46 unsigned int deleted:1; /* Nonzero if targets have been deleted. */
49 extern struct child *children;
51 extern void new_job PARAMS ((struct file *file));
52 extern void reap_children PARAMS ((int block, int err));
53 extern void start_waiting_jobs PARAMS ((void));
55 extern char **construct_command_argv PARAMS ((char *line, char **restp, struct file *file));
56 #ifdef VMS
57 extern int child_execute_job PARAMS ((char *argv, struct child *child));
58 #else
59 extern void child_execute_job PARAMS ((int stdin_fd, int stdout_fd, char **argv, char **envp));
60 #endif
61 #ifdef _AMIGA
62 extern void exec_command PARAMS ((char **argv));
63 #else
64 extern void exec_command PARAMS ((char **argv, char **envp));
65 #endif
67 extern unsigned int job_slots_used;
69 extern void block_sigs PARAMS ((void));
70 #ifdef POSIX
71 extern void unblock_sigs PARAMS ((void));
72 #else
73 #ifdef HAVE_SIGSETMASK
74 extern int fatal_signal_mask;
75 #define unblock_sigs() sigsetmask (0)
76 #else
77 #define unblock_sigs()
78 #endif
79 #endif
81 #endif /* SEEN_JOB_H */