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https://github.com/php/php-src.git
synced 2026-04-26 17:38:14 +02:00
Peter Kokot
1ad08256f3
This patch adds missing newlines, trims multiple redundant final newlines into a single one, and trims redundant leading newlines. According to POSIX, a line is a sequence of zero or more non-' <newline>' characters plus a terminating '<newline>' character. [1] Files should normally have at least one final newline character. C89 [2] and later standards [3] mention a final newline: "A source file that is not empty shall end in a new-line character, which shall not be immediately preceded by a backslash character." Although it is not mandatory for all files to have a final newline fixed, a more consistent and homogeneous approach brings less of commit differences issues and a better development experience in certain text editors and IDEs. [1] http://pubs.opengroup.org/onlinepubs/9699919799/basedefs/V1_chap03.html#tag_03_206 [2] https://port70.net/~nsz/c/c89/c89-draft.html#2.1.1.2 [3] https://port70.net/~nsz/c/c99/n1256.html#5.1.1.2
68 lines
1.2 KiB
C
68 lines
1.2 KiB
C
/* (c) 2007,2008 Andrei Nigmatulin, Jerome Loyet */
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#include <sys/mman.h>
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#include <errno.h>
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#include <string.h>
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#include "fpm_shm.h"
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#include "zlog.h"
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/* MAP_ANON is deprecated, but not in macosx */
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#if defined(MAP_ANON) && !defined(MAP_ANONYMOUS)
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#define MAP_ANONYMOUS MAP_ANON
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#endif
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static size_t fpm_shm_size = 0;
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void *fpm_shm_alloc(size_t size) /* {{{ */
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{
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void *mem;
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mem = mmap(0, size, PROT_READ | PROT_WRITE, MAP_ANONYMOUS | MAP_SHARED, -1, 0);
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#ifdef MAP_FAILED
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if (mem == MAP_FAILED) {
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zlog(ZLOG_SYSERROR, "unable to allocate %zu bytes in shared memory: %s", size, strerror(errno));
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return NULL;
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}
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#endif
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if (!mem) {
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zlog(ZLOG_SYSERROR, "unable to allocate %zu bytes in shared memory", size);
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return NULL;
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}
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fpm_shm_size += size;
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return mem;
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}
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/* }}} */
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int fpm_shm_free(void *mem, size_t size) /* {{{ */
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{
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if (!mem) {
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zlog(ZLOG_ERROR, "mem is NULL");
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return 0;
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}
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if (munmap(mem, size) == -1) {
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zlog(ZLOG_SYSERROR, "Unable to free shm");
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return 0;
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}
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if (fpm_shm_size - size > 0) {
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fpm_shm_size -= size;
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} else {
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fpm_shm_size = 0;
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}
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return 1;
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}
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/* }}} */
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size_t fpm_shm_get_size_allocated() /* {{{*/
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{
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return fpm_shm_size;
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}
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/* }}} */
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