summaryrefslogtreecommitdiff
path: root/src/lib/shm_ap_rbuff.c
diff options
context:
space:
mode:
authorSander Vrijders <sander.vrijders@intec.ugent.be>2016-10-04 15:23:54 +0200
committerSander Vrijders <sander.vrijders@intec.ugent.be>2016-10-04 15:23:54 +0200
commit1a7c0923206cfb98d43122621a585027c67040ea (patch)
treeacd08f09f5a094e897020e97961b2847209df043 /src/lib/shm_ap_rbuff.c
parentecdf47b97abb8c5107846f4ef4a17bd62ba6dc82 (diff)
parentc96efb13edfaf9b2f2c626bd2a5d5d5afd38155f (diff)
downloadouroboros-1a7c0923206cfb98d43122621a585027c67040ea.tar.gz
ouroboros-1a7c0923206cfb98d43122621a585027c67040ea.zip
Merged in dstaesse/ouroboros/be-unify (pull request #251)
lib, ipcp: Revise fast path and flow interfaces
Diffstat (limited to 'src/lib/shm_ap_rbuff.c')
-rw-r--r--src/lib/shm_ap_rbuff.c50
1 files changed, 8 insertions, 42 deletions
diff --git a/src/lib/shm_ap_rbuff.c b/src/lib/shm_ap_rbuff.c
index d9e332fe..184a1bf2 100644
--- a/src/lib/shm_ap_rbuff.c
+++ b/src/lib/shm_ap_rbuff.c
@@ -21,14 +21,14 @@
*/
#include <ouroboros/config.h>
+#include <ouroboros/shm_ap_rbuff.h>
+#include <ouroboros/lockfile.h>
+#include <ouroboros/time_utils.h>
#include <ouroboros/errno.h>
#define OUROBOROS_PREFIX "shm_ap_rbuff"
#include <ouroboros/logs.h>
-#include <ouroboros/shm_ap_rbuff.h>
-#include <ouroboros/lockfile.h>
-#include <ouroboros/time_utils.h>
#include <pthread.h>
#include <sys/mman.h>
@@ -41,8 +41,6 @@
#include <sys/stat.h>
#define FN_MAX_CHARS 255
-#define NORTH false
-#define SOUTH true
#define SHM_RBUFF_FILE_SIZE (SHM_BUFFER_SIZE * sizeof(struct rb_entry) \
+ 2 * sizeof(size_t) + sizeof(pthread_mutex_t) \
@@ -63,11 +61,10 @@ struct shm_ap_rbuff {
pthread_cond_t * add; /* SDU arrived */
pthread_cond_t * del; /* SDU removed */
pid_t api; /* api to which this rb belongs */
- bool dir; /* direction, false = N */
int fd;
};
-static struct shm_ap_rbuff * shm_ap_rbuff_create(bool dir)
+struct shm_ap_rbuff * shm_ap_rbuff_create()
{
struct shm_ap_rbuff * rb;
int shm_fd;
@@ -77,10 +74,7 @@ static struct shm_ap_rbuff * shm_ap_rbuff_create(bool dir)
char fn[FN_MAX_CHARS];
mode_t mask;
- if (dir == SOUTH)
- sprintf(fn, SHM_AP_RBUFF_PREFIX "south.%d", getpid());
- else
- sprintf(fn, SHM_AP_RBUFF_PREFIX "north.%d", getpid());
+ sprintf(fn, SHM_AP_RBUFF_PREFIX "%d", getpid());
rb = malloc(sizeof(*rb));
if (rb == NULL) {
@@ -157,22 +151,18 @@ static struct shm_ap_rbuff * shm_ap_rbuff_create(bool dir)
rb->fd = shm_fd;
rb->api = getpid();
- rb->dir = dir;
return rb;
}
-static struct shm_ap_rbuff * shm_ap_rbuff_open(pid_t api, bool dir)
+struct shm_ap_rbuff * shm_ap_rbuff_open(pid_t api)
{
struct shm_ap_rbuff * rb;
int shm_fd;
struct rb_entry * shm_base;
char fn[FN_MAX_CHARS];
- if (dir == SOUTH)
- sprintf(fn, SHM_AP_RBUFF_PREFIX "south.%d", api);
- else
- sprintf(fn, SHM_AP_RBUFF_PREFIX "north.%d", api);
+ sprintf(fn, SHM_AP_RBUFF_PREFIX "%d", api);
rb = malloc(sizeof(*rb));
if (rb == NULL) {
@@ -215,31 +205,10 @@ static struct shm_ap_rbuff * shm_ap_rbuff_open(pid_t api, bool dir)
rb->fd = shm_fd;
rb->api = api;
- rb->dir = dir;
return rb;
}
-struct shm_ap_rbuff * shm_ap_rbuff_create_n()
-{
- return shm_ap_rbuff_create(NORTH);
-}
-
-struct shm_ap_rbuff * shm_ap_rbuff_create_s()
-{
- return shm_ap_rbuff_create(SOUTH);
-}
-
-struct shm_ap_rbuff * shm_ap_rbuff_open_n(pid_t api)
-{
- return shm_ap_rbuff_open(api, NORTH);
-}
-
-struct shm_ap_rbuff * shm_ap_rbuff_open_s(pid_t api)
-{
- return shm_ap_rbuff_open(api, SOUTH);
-}
-
void shm_ap_rbuff_close(struct shm_ap_rbuff * rb)
{
if (rb == NULL) {
@@ -285,10 +254,7 @@ void shm_ap_rbuff_destroy(struct shm_ap_rbuff * rb)
if (close(rb->fd) < 0)
LOG_DBG("Couldn't close shared memory.");
- if (rb->dir == SOUTH)
- sprintf(fn, SHM_AP_RBUFF_PREFIX "south.%d", rb->api);
- else
- sprintf(fn, SHM_AP_RBUFF_PREFIX "north.%d", rb->api);
+ sprintf(fn, SHM_AP_RBUFF_PREFIX "%d", rb->api);
if (munmap(rb->shm_base, SHM_RBUFF_FILE_SIZE) == -1)
LOG_DBG("Couldn't unmap shared memory.");