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shm: Remove duplicated arguement

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This commit is contained in:
Olivier Crête 2010-10-20 22:49:59 +02:00
parent 70b8d2ab93
commit 01f1cc20d7
1 changed files with 14 additions and 16 deletions

30
sys/shm/shmpipe.c
View file

@ -171,8 +171,7 @@ struct CommandBuffer
} payload;
};
static ShmArea *sp_open_shm (char *path, int id, int writer, mode_t perms,
size_t size);
static ShmArea *sp_open_shm (char *path, int id, mode_t perms, size_t size);
static void sp_close_shm (ShmPipe * self, ShmArea * area);
static int sp_shmbuf_dec (ShmPipe * self, ShmBuffer * buf,
ShmBuffer * prev_buf);
@ -228,7 +227,7 @@ sp_writer_create (const char *path, size_t size, mode_t perms)
if (listen (self->main_socket, LISTEN_BACKLOG) < 0)
RETURN_ERROR ("listen() failed (%d): %s\n", errno, strerror (errno));
self->shm_area = sp_open_shm (NULL, ++self->next_area_id, 1, perms, size);
self->shm_area = sp_open_shm (NULL, ++self->next_area_id, perms, size);
self->perms = perms;
@ -247,14 +246,14 @@ sp_writer_create (const char *path, size_t size, mode_t perms)
/**
* sp_open_shm:
* @path: Path of the shm area, NULL if this is a writer (then it will allocate
* its own path)
* @path: Path of the shm area for a reader,
* NULL if this is a writer (then it will allocate its own path)
*
* Opens a ShmArea
*/
static ShmArea *
sp_open_shm (char *path, int id, int writer, mode_t perms, size_t size)
sp_open_shm (char *path, int id, mode_t perms, size_t size)
{
ShmArea *area = spalloc_new (ShmArea);
char tmppath[PATH_MAX];
@ -269,10 +268,10 @@ sp_open_shm (char *path, int id, int writer, mode_t perms, size_t size)
area->shm_area_len = size;
if (writer)
flags = O_RDWR | O_CREAT | O_TRUNC | O_EXCL;
else
if (path)
flags = O_RDONLY;
else
flags = O_RDWR | O_CREAT | O_TRUNC | O_EXCL;
area->shm_fd = -1;
@ -289,18 +288,17 @@ sp_open_shm (char *path, int id, int writer, mode_t perms, size_t size)
RETURN_ERROR ("shm_open failed on %s (%d): %s\n",
path ? path : tmppath, errno, strerror (errno));
if (!path)
if (!path) {
area->shm_area_name = strdup (tmppath);
if (writer)
if (ftruncate (area->shm_fd, size))
RETURN_ERROR ("Could not resize memory area to header size,"
" ftruncate failed (%d): %s\n", errno, strerror (errno));
if (writer)
prot = PROT_READ | PROT_WRITE;
else
} else {
prot = PROT_READ;
}
area->shm_area_buf = mmap (NULL, size, prot, MAP_SHARED, area->shm_fd, 0);
@ -309,7 +307,7 @@ sp_open_shm (char *path, int id, int writer, mode_t perms, size_t size)
area->id = id;
if (writer)
if (!path)
area->allocspace = shm_alloc_space_new (area->shm_area_len);
return area;
@ -432,7 +430,7 @@ sp_writer_resize (ShmPipe * self, size_t size)
if (self->shm_area->shm_area_len == size)
return 0;
newarea = sp_open_shm (NULL, ++self->next_area_id, 1, self->perms, size);
newarea = sp_open_shm (NULL, ++self->next_area_id, self->perms, size);
if (!newarea)
return -1;
@ -603,7 +601,7 @@ sp_client_recv (ShmPipe * self, char **buf)
return -3;
}
newarea = sp_open_shm (area_name, cb.area_id, 0, 0,
newarea = sp_open_shm (area_name, cb.area_id, 0,
cb.payload.new_shm_area.size);
free (area_name);
if (!newarea)