| /* 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 */ |