diff options
Diffstat (limited to 'job.h')
| -rw-r--r-- | job.h | 109 |
1 files changed, 109 insertions, 0 deletions
@@ -0,0 +1,109 @@ +/* Definitions for managing subprocesses in GNU Make. +Copyright (C) 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001, +2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010 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 3 of the License, 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 +this program. If not, see <http://www.gnu.org/licenses/>. */ + +#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 */ + char *comname; /* Temporary command file name */ +#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; + +int is_bourne_compatible_shell(const char *path); +void new_job (struct file *file); +void reap_children (int block, int err); +void start_waiting_jobs (void); + +char **construct_command_argv (char *line, char **restp, struct file *file, + int cmd_flags, char** batch_file); +#ifdef VMS +int child_execute_job (char *argv, struct child *child); +#elif defined(__EMX__) +int child_execute_job (int stdin_fd, int stdout_fd, char **argv, char **envp); +#else +void child_execute_job (int stdin_fd, int stdout_fd, char **argv, char **envp); +#endif +#ifdef _AMIGA +void exec_command (char **argv); +#elif defined(__EMX__) +int exec_command (char **argv, char **envp); +#else +void exec_command (char **argv, char **envp); +#endif + +extern unsigned int job_slots_used; + +void block_sigs (void); +#ifdef POSIX +void unblock_sigs (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 */ |