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author | Sander Vrijders <sander.vrijders@intec.ugent.be> | 2016-10-12 11:10:31 +0200 |
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committer | Sander Vrijders <sander.vrijders@intec.ugent.be> | 2016-10-12 11:10:31 +0200 |
commit | 2ba45f5efe0486b88f91ecced451f74cc782e8a4 (patch) | |
tree | 8b75a9cc0ea622965a12c6aa5e0d81132c987ca4 /src/lib/shm_rdrbuff.c | |
parent | 69ef99bb2dc05337e8189acc42dc9122f4182ead (diff) | |
parent | b1dda618ce8cbb98f72c0b04925227889204e0c9 (diff) | |
download | ouroboros-2ba45f5efe0486b88f91ecced451f74cc782e8a4.tar.gz ouroboros-2ba45f5efe0486b88f91ecced451f74cc782e8a4.zip |
Merge remote-tracking branch 'upstream/be' into be-connection
Diffstat (limited to 'src/lib/shm_rdrbuff.c')
-rw-r--r-- | src/lib/shm_rdrbuff.c | 64 |
1 files changed, 29 insertions, 35 deletions
diff --git a/src/lib/shm_rdrbuff.c b/src/lib/shm_rdrbuff.c index fb58a4d6..f6683dc2 100644 --- a/src/lib/shm_rdrbuff.c +++ b/src/lib/shm_rdrbuff.c @@ -35,6 +35,7 @@ #include <signal.h> #include <sys/stat.h> #include <stdbool.h> +#include <assert.h> #define OUROBOROS_PREFIX "shm_rdrbuff" @@ -324,8 +325,8 @@ void * shm_rdrbuff_sanitize(void * o) pid_t api; - if (rdrb == NULL) - return (void *) -1; + assert(o); + #ifdef __APPLE__ pthread_mutex_lock(rdrb->lock); #else @@ -397,10 +398,7 @@ void * shm_rdrbuff_sanitize(void * o) void shm_rdrbuff_close(struct shm_rdrbuff * rdrb) { - if (rdrb == NULL) { - LOG_DBGF("Bogus input. Bugging out."); - return; - } + assert(rdrb); if (close(rdrb->fd) < 0) LOG_DBGF("Couldn't close shared memory."); @@ -415,10 +413,7 @@ void shm_rdrbuff_destroy(struct shm_rdrbuff * rdrb) { char * shm_rdrb_fn; - if (rdrb == NULL) { - LOG_DBGF("Bogus input. Bugging out."); - return; - } + assert(rdrb); if (getpid() != *rdrb->api && kill(*rdrb->api, 0) == 0) { LOG_DBG("Process %d tried to destroy active rdrb.", getpid()); @@ -460,10 +455,8 @@ ssize_t shm_rdrbuff_write(struct shm_rdrbuff * rdrb, int sz = size + sizeof *sdb; uint8_t * write_pos; - if (rdrb == NULL || data == NULL) { - LOG_DBGF("Bogus input, bugging out."); - return -1; - } + assert(rdrb); + assert(data); #ifndef SHM_RDRB_MULTI_BLOCK if (sz > SHM_RDRB_BLOCK_SIZE) { @@ -534,11 +527,11 @@ ssize_t shm_rdrbuff_write(struct shm_rdrbuff * rdrb, } ssize_t shm_rdrbuff_write_b(struct shm_rdrbuff * rdrb, - pid_t dst_api, - size_t headspace, - size_t tailspace, - uint8_t * data, - size_t len) + pid_t dst_api, + size_t headspace, + size_t tailspace, + uint8_t * data, + size_t len) { struct shm_du_buff * sdb; size_t size = headspace + len + tailspace; @@ -549,10 +542,8 @@ ssize_t shm_rdrbuff_write_b(struct shm_rdrbuff * rdrb, int sz = size + sizeof *sdb; uint8_t * write_pos; - if (rdrb == NULL || data == NULL) { - LOG_DBGF("Bogus input, bugging out."); - return -1; - } + assert(rdrb); + assert(data); #ifndef SHM_RDRB_MULTI_BLOCK if (sz > SHM_RDRB_BLOCK_SIZE) { @@ -631,6 +622,9 @@ int shm_rdrbuff_read(uint8_t ** dst, size_t len = 0; struct shm_du_buff * sdb; + assert(dst); + assert(rdrb); + if (idx > SHM_BUFFER_SIZE) return -1; #ifdef __APPLE__ @@ -659,6 +653,8 @@ struct shm_du_buff * shm_rdrbuff_get(struct shm_rdrbuff * rdrb, ssize_t idx) { struct shm_du_buff * sdb; + assert(rdrb); + if (idx > SHM_BUFFER_SIZE) return NULL; #ifdef __APPLE__ @@ -683,6 +679,8 @@ struct shm_du_buff * shm_rdrbuff_get(struct shm_rdrbuff * rdrb, ssize_t idx) int shm_rdrbuff_remove(struct shm_rdrbuff * rdrb, ssize_t idx) { + assert(rdrb); + if (idx > SHM_BUFFER_SIZE) return -1; #ifdef __APPLE__ @@ -717,21 +715,21 @@ int shm_rdrbuff_remove(struct shm_rdrbuff * rdrb, ssize_t idx) size_t shm_du_buff_get_idx(struct shm_du_buff * sdb) { + assert(sdb); + return sdb->idx; } uint8_t * shm_du_buff_head(struct shm_du_buff * sdb) { - if (sdb == NULL) - return NULL; + assert(sdb); return (uint8_t *) (sdb + 1) + sdb->du_head; } uint8_t * shm_du_buff_tail(struct shm_du_buff * sdb) { - if (sdb == NULL) - return NULL; + assert(sdb); return (uint8_t *) (sdb + 1) + sdb->du_tail; } @@ -741,8 +739,7 @@ uint8_t * shm_du_buff_head_alloc(struct shm_du_buff * sdb, { uint8_t * buf = NULL; - if (sdb == NULL) - return NULL; + assert(sdb); if ((long) (sdb->du_head - size) < 0) { LOG_ERR("Failed to allocate PCI headspace."); @@ -761,8 +758,7 @@ uint8_t * shm_du_buff_tail_alloc(struct shm_du_buff * sdb, { uint8_t * buf = NULL; - if (sdb == NULL) - return NULL; + assert(sdb); if (sdb->du_tail + size >= sdb->size) { LOG_ERR("Failed to allocate PCI tailspace."); @@ -779,8 +775,7 @@ uint8_t * shm_du_buff_tail_alloc(struct shm_du_buff * sdb, int shm_du_buff_head_release(struct shm_du_buff * sdb, size_t size) { - if (sdb == NULL) - return -1; + assert(sdb); if (size > sdb->du_tail - sdb->du_head) { LOG_DBGF("Tried to release beyond SDU boundary."); @@ -795,8 +790,7 @@ int shm_du_buff_head_release(struct shm_du_buff * sdb, int shm_du_buff_tail_release(struct shm_du_buff * sdb, size_t size) { - if (sdb == NULL) - return -1; + assert(sdb); if (size > sdb->du_tail - sdb->du_head) { LOG_ERR("Tried to release beyond SDU boundary."); |