| /* Definitions for managing subprocesses in GNU Make. |
| Copyright (C) 1992, 1993 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, 675 Mass Ave, Cambridge, MA 02139, USA. */ |
| |
| /* 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. */ |
| 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. */ |
| }; |
| |
| extern struct child *children; |
| |
| extern void new_job (); |
| extern void reap_children (); |
| extern void start_waiting_jobs (); |
| |
| extern char **construct_command_argv (); |
| extern void child_execute_job (); |
| extern void exec_command (); |
| |
| extern unsigned int job_slots_used; |
| |
| #ifdef POSIX |
| extern void unblock_sigs (); |
| #else |
| #ifdef HAVE_SIGSETMASK |
| extern int fatal_signal_mask; |
| #define unblock_sigs() sigsetmask (0) |
| #else |
| #define unblock_sigs() |
| #endif |
| #endif |