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/* Definitions for managing subprocesses in GNU Make.
Copyright (C) 1992, 1993, 1996, 1999 Free Software Foundation, Inc.
This file is part of GNU Make.
GNU Make is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2, or (at your option)
any later version.
GNU Make is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with GNU Make; see the file COPYING. If not, write to
the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
Boston, MA 02111-1307, USA. */
#ifndef SEEN_JOB_H
#define SEEN_JOB_H
#ifdef HAVE_FCNTL_H
# include <fcntl.h>
#else
# include <sys/file.h>
#endif
/* How to set close-on-exec for a file descriptor. */
#if !defined F_SETFD
# define CLOSE_ON_EXEC(_d)
#else
# ifndef FD_CLOEXEC
# define FD_CLOEXEC 1
# endif
# define CLOSE_ON_EXEC(_d) (void) fcntl ((_d), F_SETFD, FD_CLOEXEC)
#endif
/* Structure describing a running or dead child process. */
struct child
{
struct child *next; /* Link in the chain. */
struct file *file; /* File being remade. */
char **environment; /* Environment for commands. */
char **command_lines; /* Array of variable-expanded cmd lines. */
unsigned int command_line; /* Index into above. */
char *command_ptr; /* Ptr into command_lines[command_line]. */
pid_t pid; /* Child process's ID number. */
#ifdef VMS
int efn; /* Completion event flag number */
int cstatus; /* Completion status */
#endif
char *sh_batch_file; /* Script file for shell commands */
unsigned int remote:1; /* Nonzero if executing remotely. */
unsigned int noerror:1; /* Nonzero if commands contained a `-'. */
unsigned int good_stdin:1; /* Nonzero if this child has a good stdin. */
unsigned int deleted:1; /* Nonzero if targets have been deleted. */
unsigned int dontcare:1; /* Saved dontcare flag. */
};
extern struct child *children;
extern void new_job PARAMS ((struct file *file));
extern void reap_children PARAMS ((int block, int err));
extern void start_waiting_jobs PARAMS ((void));
extern char **construct_command_argv PARAMS ((char *line, char **restp, struct file *file, char** batch_file));
#ifdef VMS
extern int child_execute_job PARAMS ((char *argv, struct child *child));
#elif defined(__EMX__)
extern int child_execute_job PARAMS ((int stdin_fd, int stdout_fd, char **argv, char **envp));
#else
extern void child_execute_job PARAMS ((int stdin_fd, int stdout_fd, char **argv, char **envp));
#endif
#ifdef _AMIGA
extern void exec_command PARAMS ((char **argv));
#elif defined(__EMX__)
extern int exec_command PARAMS ((char **argv, char **envp));
#else
extern void exec_command PARAMS ((char **argv, char **envp));
#endif
extern unsigned int job_slots_used;
extern void block_sigs PARAMS ((void));
#ifdef POSIX
extern void unblock_sigs PARAMS ((void));
#else
#ifdef HAVE_SIGSETMASK
extern int fatal_signal_mask;
#define unblock_sigs() sigsetmask (0)
#else
#define unblock_sigs()
#endif
#endif
extern unsigned int jobserver_tokens;
#endif /* SEEN_JOB_H */
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