diff options
Diffstat (limited to 'libpthread/nptl/sem_open.c')
| -rw-r--r-- | libpthread/nptl/sem_open.c | 47 |
1 files changed, 26 insertions, 21 deletions
diff --git a/libpthread/nptl/sem_open.c b/libpthread/nptl/sem_open.c index 25389f0cd..8ded82cf1 100644 --- a/libpthread/nptl/sem_open.c +++ b/libpthread/nptl/sem_open.c @@ -1,4 +1,4 @@ -/* Copyright (C) 2002, 2003 Free Software Foundation, Inc. +/* Copyright (C) 2002, 2003, 2006, 2007, 2009 Free Software Foundation, Inc. This file is part of the GNU C Library. Contributed by Ulrich Drepper <drepper@redhat.com>, 2002. @@ -38,14 +38,15 @@ /* Compatibility defines. */ -#define __endmntent endmntent -#define __fxstat64(vers, fd, buf) fstat64(fd, buf) -#define __getmntent_r getmntent_r -#define __setmntent setmntent -#define __statfs statfs -#define __libc_close close -#define __libc_open open -#define __libc_write write +#define __endmntent endmntent +#define __fxstat64(vers, fd, buf) fstat64(fd, buf) +#define __getmntent_r getmntent_r +#define __setmntent setmntent +#define __statfs statfs +#define __libc_close close +#define __libc_open open +#define __libc_write write + /* Information about the mount point. */ struct mountpoint_info mountpoint attribute_hidden; @@ -157,7 +158,7 @@ __sem_search (const void *a, const void *b) void *__sem_mappings attribute_hidden; /* Lock to protect the search tree. */ -lll_lock_t __sem_mappings_lock = LLL_LOCK_INITIALIZER; +int __sem_mappings_lock attribute_hidden = LLL_LOCK_INITIALIZER; /* Search for existing mapping and if possible add the one provided. */ @@ -176,7 +177,7 @@ check_add_mapping (const char *name, size_t namelen, int fd, sem_t *existing) #endif { /* Get the lock. */ - lll_lock (__sem_mappings_lock); + lll_lock (__sem_mappings_lock, LLL_PRIVATE); /* Search for an existing mapping given the information we have. */ struct inuse_sem *fake; @@ -225,7 +226,7 @@ check_add_mapping (const char *name, size_t namelen, int fd, sem_t *existing) } /* Release the lock. */ - lll_unlock (__sem_mappings_lock); + lll_unlock (__sem_mappings_lock, LLL_PRIVATE); } if (result != existing && existing != SEM_FAILED && existing != MAP_FAILED) @@ -317,24 +318,28 @@ sem_open (const char *name, int oflag, ...) } /* Create the initial file content. */ - sem_t initsem; + union + { + sem_t initsem; + struct new_sem newsem; + } sem; - struct sem *iinitsem = (struct sem *) &initsem; - iinitsem->count = value; + sem.newsem.value = value; + sem.newsem.private = 0; + sem.newsem.nwaiters = 0; /* Initialize the remaining bytes as well. */ - memset ((char *) &initsem + sizeof (struct sem), '\0', - sizeof (sem_t) - sizeof (struct sem)); + memset ((char *) &sem.initsem + sizeof (struct new_sem), '\0', + sizeof (sem_t) - sizeof (struct new_sem)); tmpfname = (char *) alloca (mountpoint.dirlen + 6 + 1); - char *xxxxxx = mempcpy (tmpfname, mountpoint.dir, mountpoint.dirlen); - strcpy (xxxxxx, "XXXXXX"); + mempcpy (tmpfname, mountpoint.dir, mountpoint.dirlen); fd = __gen_tempname (tmpfname, __GT_FILE, mode); if (fd == -1) - return SEM_FAILED; + return SEM_FAILED; - if (TEMP_FAILURE_RETRY (__libc_write (fd, &initsem, sizeof (sem_t))) + if (TEMP_FAILURE_RETRY (__libc_write (fd, &sem.initsem, sizeof (sem_t))) == sizeof (sem_t) /* Map the sem_t structure from the file. */ && (result = (sem_t *) mmap (NULL, sizeof (sem_t), |