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d5f0b88095
* job.c (start_job_command): Call block_sigs. (block_sigs): New function, broken out of start_job_command. (reap_children): Block fatal signals around removing dead child from chain and adjusting job_slots_used. * job.h: Declare block_sigs.
81 lines
2.6 KiB
C
81 lines
2.6 KiB
C
/* Definitions for managing subprocesses in GNU Make.
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Copyright (C) 1992, 1993, 1996 Free Software Foundation, Inc.
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This file is part of GNU Make.
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GNU Make is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2, or (at your option)
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any later version.
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GNU Make is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with GNU Make; see the file COPYING. If not, write to
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the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA. */
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#ifndef SEEN_JOB_H
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#define SEEN_JOB_H
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/* Structure describing a running or dead child process. */
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struct child
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{
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struct child *next; /* Link in the chain. */
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struct file *file; /* File being remade. */
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char **environment; /* Environment for commands. */
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char **command_lines; /* Array of variable-expanded cmd lines. */
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unsigned int command_line; /* Index into above. */
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char *command_ptr; /* Ptr into command_lines[command_line]. */
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pid_t pid; /* Child process's ID number. */
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#ifdef VMS
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int efn; /* Completion event flag number */
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int cstatus; /* Completion status */
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#endif
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unsigned int remote:1; /* Nonzero if executing remotely. */
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unsigned int noerror:1; /* Nonzero if commands contained a `-'. */
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unsigned int good_stdin:1; /* Nonzero if this child has a good stdin. */
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unsigned int deleted:1; /* Nonzero if targets have been deleted. */
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};
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extern struct child *children;
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extern void new_job PARAMS ((struct file *file));
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extern void reap_children PARAMS ((int block, int err));
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extern void start_waiting_jobs PARAMS ((void));
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extern char **construct_command_argv PARAMS ((char *line, char **restp, struct file *file));
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#ifdef VMS
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extern int child_execute_job PARAMS ((char *argv, struct child *child));
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#else
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extern void child_execute_job PARAMS ((int stdin_fd, int stdout_fd, char **argv, char **envp));
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#endif
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#ifdef _AMIGA
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extern void exec_command PARAMS ((char **argv));
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#else
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extern void exec_command PARAMS ((char **argv, char **envp));
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#endif
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extern unsigned int job_slots_used;
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extern void block_sigs PARAMS ((void));
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#ifdef POSIX
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extern void unblock_sigs PARAMS ((void));
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#else
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#ifdef HAVE_SIGSETMASK
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extern int fatal_signal_mask;
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#define unblock_sigs() sigsetmask (0)
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#else
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#define unblock_sigs()
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#endif
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#endif
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#endif /* SEEN_JOB_H */
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