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107 lines
3.4 KiB
C
107 lines
3.4 KiB
C
/* Output to stdout / stderr for GNU make
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Copyright (C) 2013-2019 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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struct output
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{
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int out;
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int err;
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unsigned int syncout:1; /* True if we want to synchronize output. */
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};
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extern struct output *output_context;
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extern unsigned int stdio_traced;
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#define FD_STDIN (fileno (stdin))
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#define FD_STDOUT (fileno (stdout))
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#define FD_STDERR (fileno (stderr))
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#define OUTPUT_SET(_new) do{ output_context = (_new)->syncout ? (_new) : NULL; }while(0)
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#define OUTPUT_UNSET() do{ output_context = NULL; }while(0)
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#define OUTPUT_TRACED() do{ stdio_traced = 1; }while(0)
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#define OUTPUT_IS_TRACED() (!!stdio_traced)
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/* Write a buffer directly to the given file descriptor.
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This handles errors etc. */
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int output_write (int fd, const void *buffer, size_t len);
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/* Initialize and close a child output structure: if NULL do this program's
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output (this should only be done once). */
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void output_init (struct output *out);
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void output_close (struct output *out);
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/* In situations where output may be about to be displayed but we're not
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sure if we've set it up yet, call this. */
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void output_start (void);
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/* Show a message on stdout or stderr. Will start the output if needed. */
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void outputs (int is_err, const char *msg);
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#if defined(HAVE_FCNTL_H)
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# include <fcntl.h>
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#elif defined(HAVE_SYS_FILE_H)
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# include <sys/file.h>
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#endif
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#ifdef NO_OUTPUT_SYNC
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# define RECORD_SYNC_MUTEX(m) \
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O (error, NILF, \
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_("-O[TYPE] (--output-sync[=TYPE]) is not configured for this build."));
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#else
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int output_tmpfd (void);
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/* Dump any child output content to stdout, and reset it. */
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void output_dump (struct output *out);
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# ifdef WINDOWS32
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/* For emulations in w32/compat/posixfcn.c. */
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# define F_GETFD 1
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# define F_SETLKW 2
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/* Implementation note: None of the values of l_type below can be zero
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-- they are compared with a static instance of the struct, so zero
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means unknown/invalid, see w32/compat/posixfcn.c. */
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# define F_WRLCK 1
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# define F_UNLCK 2
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struct flock
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{
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short l_type;
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short l_whence;
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off_t l_start;
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off_t l_len;
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pid_t l_pid;
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};
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/* This type is actually a HANDLE, but we want to avoid including
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windows.h as much as possible. */
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typedef intptr_t sync_handle_t;
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/* Public functions emulated/provided in posixfcn.c. */
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int fcntl (intptr_t fd, int cmd, ...);
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intptr_t create_mutex (void);
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int same_stream (FILE *f1, FILE *f2);
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# define RECORD_SYNC_MUTEX(m) record_sync_mutex(m)
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void record_sync_mutex (const char *str);
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void prepare_mutex_handle_string (intptr_t hdl);
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# else /* !WINDOWS32 */
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typedef int sync_handle_t; /* file descriptor */
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# define RECORD_SYNC_MUTEX(m) (void)(m)
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# endif
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#endif /* !NO_OUTPUT_SYNC */
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