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ba8383efd8
Move function prototypes into header files and out of .c files. Use void argument lists for functions that accept no args. Remove unused macros. Make private functions static. Align types with printf format characters.
84 lines
2.9 KiB
C
84 lines
2.9 KiB
C
/* Declarations for operating system interfaces for GNU Make.
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Copyright (C) 2016 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 it under the
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terms of the GNU General Public License as published by the Free Software
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Foundation; either version 3 of the License, or (at your option) any later
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version.
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GNU Make is distributed in the hope that it will be useful, but WITHOUT ANY
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WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
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A PARTICULAR PURPOSE. See the GNU General Public License for more details.
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You should have received a copy of the GNU General Public License along with
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this program. If not, see <http://www.gnu.org/licenses/>. */
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/* This section provides OS-specific functions to support the jobserver. */
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#ifdef MAKE_JOBSERVER
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/* Returns 1 if the jobserver is enabled, else 0. */
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unsigned int jobserver_enabled (void);
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/* Called in the master instance to set up the jobserver initially. */
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unsigned int jobserver_setup (int job_slots);
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/* Called in a child instance to connect to the jobserver. */
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unsigned int jobserver_parse_auth (const char* auth);
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/* Returns an allocated buffer used to pass to child instances. */
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char *jobserver_get_auth (void);
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/* Clear this instance's jobserver configuration. */
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void jobserver_clear (void);
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/* Recover all the jobserver tokens and return the number we got. */
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unsigned int jobserver_acquire_all (void);
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/* Release a jobserver token. If it fails and is_fatal is 1, fatal. */
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void jobserver_release (int is_fatal);
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/* Notify the jobserver that a child exited. */
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void jobserver_signal (void);
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/* Get ready to start a non-recursive child. */
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void jobserver_pre_child (int);
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/* Complete starting a non-recursive child. */
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void jobserver_post_child (int);
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/* Set up to acquire a new token. */
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void jobserver_pre_acquire (void);
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/* Wait until we can acquire a jobserver token.
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TIMEOUT is 1 if we have other jobs waiting for the load to go down;
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in this case we won't wait forever, so we can check the load.
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Returns 1 if we got a token, or 0 if we stopped waiting due to a child
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exiting or a timeout. */
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unsigned int jobserver_acquire (int timeout);
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#else
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#define jobserver_enabled() (0)
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#define jobserver_setup(_slots) (0)
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#define jobserver_parse_auth(_auth) (0)
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#define jobserver_get_auth() (NULL)
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#define jobserver_clear() (void)(0)
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#define jobserver_release(_fatal) (void)(0)
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#define jobserver_acquire_all() (0)
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#define jobserver_signal() (void)(0)
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#define jobserver_pre_child(_r) (void)(0)
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#define jobserver_post_child(_r) (void)(0)
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#define jobserver_pre_acquire() (void)(0)
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#define jobserver_acquire(_tmout) (0)
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#endif
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/* Create a "bad" file descriptor for stdin when parallel jobs are run. */
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#if !defined(VMD) && !defined(WINDOWS32) && !defined(_AMIGA) && !defined(__MSDOS__)
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int get_bad_stdin (void);
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#else
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# define get_bad_stdin() (-1)
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#endif
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