From 02976060919566d1a217b818ca8f33297700d56d Mon Sep 17 00:00:00 2001 From: dimitri staessens Date: Thu, 20 Oct 2016 19:52:02 +0200 Subject: lib: Move rbuff creation/destruction to IRMd This stabilises flow allocation now that the rbuffs are created upon flow allocation. Only the IRMd can sync this process sufficiently. --- src/irmd/irm_flow.c | 6 +++++ src/irmd/irm_flow.h | 20 ++++++++++------- src/irmd/main.c | 65 ++++++++++++++++++++++++++++++++++++++++------------- 3 files changed, 68 insertions(+), 23 deletions(-) (limited to 'src/irmd') diff --git a/src/irmd/irm_flow.c b/src/irmd/irm_flow.c index df1302b4..dc5d22d8 100644 --- a/src/irmd/irm_flow.c +++ b/src/irmd/irm_flow.c @@ -36,6 +36,9 @@ struct irm_flow * irm_flow_create() f->n_api = -1; f->n_1_api = -1; f->port_id = -1; + f->n_rb = NULL; + f->n_1_rb = NULL; + f->state = FLOW_NULL; if (pthread_cond_init(&f->state_cond, NULL)) { @@ -78,6 +81,9 @@ void irm_flow_destroy(struct irm_flow * f) pthread_cond_destroy(&f->state_cond); pthread_mutex_destroy(&f->state_lock); + shm_rbuff_destroy(f->n_rb); + shm_rbuff_destroy(f->n_1_rb); + free(f); } diff --git a/src/irmd/irm_flow.h b/src/irmd/irm_flow.h index 5ec6d90e..507295bd 100644 --- a/src/irmd/irm_flow.h +++ b/src/irmd/irm_flow.h @@ -24,6 +24,7 @@ #define OUROBOROS_IRMD_IRM_FLOW_H #include +#include #include #include @@ -38,18 +39,21 @@ enum flow_state { }; struct irm_flow { - struct list_head next; + struct list_head next; - int port_id; + int port_id; - pid_t n_api; - pid_t n_1_api; + pid_t n_api; + pid_t n_1_api; - struct timespec t0; + struct shm_rbuff * n_rb; + struct shm_rbuff * n_1_rb; - enum flow_state state; - pthread_cond_t state_cond; - pthread_mutex_t state_lock; + struct timespec t0; + + enum flow_state state; + pthread_cond_t state_cond; + pthread_mutex_t state_lock; }; struct irm_flow * irm_flow_create(); diff --git a/src/irmd/main.c b/src/irmd/main.c index 67941e41..8d9d04ac 100644 --- a/src/irmd/main.c +++ b/src/irmd/main.c @@ -1164,6 +1164,24 @@ static struct irm_flow * flow_alloc(pid_t api, port_id = f->port_id = bmp_allocate(irmd->port_ids); f->n_1_api = ipcp; + f->n_rb = shm_rbuff_create(api, port_id); + if (f->n_rb == NULL) { + pthread_rwlock_unlock(&irmd->flows_lock); + pthread_rwlock_unlock(&irmd->state_lock); + LOG_ERR("Could not create ringbuffer for AP-I %d.", api); + irm_flow_destroy(f); + return NULL; + } + + f->n_1_rb = shm_rbuff_create(ipcp, port_id); + if (f->n_1_rb == NULL) { + pthread_rwlock_unlock(&irmd->flows_lock); + pthread_rwlock_unlock(&irmd->state_lock); + LOG_ERR("Could not create ringbuffer for AP-I %d.", ipcp); + irm_flow_destroy(f); + return NULL; + } + list_add(&f->next, &irmd->irm_flows); pthread_rwlock_unlock(&irmd->flows_lock); @@ -1346,7 +1364,7 @@ static struct irm_flow * flow_req_arr(pid_t api, pthread_rwlock_unlock(&irmd->reg_lock); pthread_rwlock_unlock(&irmd->state_lock); LOG_ERR("Unknown name: %s.", dst_name); - free(f); + irm_flow_destroy(f); return NULL; } @@ -1359,14 +1377,14 @@ static struct irm_flow * flow_req_arr(pid_t api, pthread_rwlock_unlock(&irmd->reg_lock); pthread_rwlock_unlock(&irmd->state_lock); LOG_ERR("No AP's for %s.", dst_name); - free(f); + irm_flow_destroy(f); return NULL; case REG_NAME_AUTO_ACCEPT: c_api = malloc(sizeof(*c_api)); if (c_api == NULL) { pthread_rwlock_unlock(&irmd->reg_lock); pthread_rwlock_unlock(&irmd->state_lock); - free(f); + irm_flow_destroy(f); return NULL; } @@ -1384,7 +1402,7 @@ static struct irm_flow * flow_req_arr(pid_t api, pthread_rwlock_unlock(&irmd->state_lock); LOG_ERR("Could not get start apn for reg_entry %s.", re->name); - free(f); + irm_flow_destroy(f); free(c_api); return NULL; } @@ -1411,6 +1429,7 @@ static struct irm_flow * flow_req_arr(pid_t api, pthread_mutex_unlock(&re->state_lock); pthread_rwlock_unlock(&irmd->reg_lock); pthread_rwlock_unlock(&irmd->state_lock); + irm_flow_destroy(f); return NULL; } @@ -1424,6 +1443,7 @@ static struct irm_flow * flow_req_arr(pid_t api, pthread_rwlock_unlock(&irmd->reg_lock); pthread_rwlock_unlock(&irmd->state_lock); LOG_ERR("Invalid api returned."); + irm_flow_destroy(f); return NULL; } @@ -1432,7 +1452,7 @@ static struct irm_flow * flow_req_arr(pid_t api, pthread_rwlock_unlock(&irmd->reg_lock); pthread_rwlock_unlock(&irmd->state_lock); LOG_ERR("IRMd in wrong state."); - free(f); + irm_flow_destroy(f); return NULL; } @@ -1441,6 +1461,26 @@ static struct irm_flow * flow_req_arr(pid_t api, pthread_rwlock_wrlock(&irmd->flows_lock); f->port_id = bmp_allocate(irmd->port_ids); + f->n_rb = shm_rbuff_create(f->n_api, f->port_id); + if (f->n_rb == NULL) { + bmp_release(irmd->port_ids, f->port_id); + pthread_rwlock_unlock(&irmd->flows_lock); + pthread_rwlock_unlock(&irmd->state_lock); + LOG_ERR("Could not create ringbuffer for AP-I %d.", f->n_api); + irm_flow_destroy(f); + return NULL; + } + + f->n_1_rb = shm_rbuff_create(f->n_1_api, f->port_id); + if (f->n_1_rb == NULL) { + bmp_release(irmd->port_ids, f->port_id); + pthread_rwlock_unlock(&irmd->flows_lock); + pthread_rwlock_unlock(&irmd->state_lock); + LOG_ERR("Could not create ringbuffer for AP-I %d.", f->n_1_api); + irm_flow_destroy(f); + return NULL; + } + list_add(&f->next, &irmd->irm_flows); pthread_rwlock_unlock(&irmd->flows_lock); @@ -1455,10 +1495,13 @@ static struct irm_flow * flow_req_arr(pid_t api, e = api_table_get(&irmd->api_table, h_api); if (e == NULL) { - LOG_ERR("Could not get api table entry for %d.", h_api); pthread_rwlock_unlock(&irmd->reg_lock); + pthread_rwlock_wrlock(&irmd->flows_lock); + bmp_release(irmd->port_ids, f->port_id); + pthread_rwlock_unlock(&irmd->flows_lock); pthread_rwlock_unlock(&irmd->state_lock); - free(f); + LOG_ERR("Could not get api table entry for %d.", h_api); + irm_flow_destroy(f); return NULL; } @@ -1692,26 +1735,18 @@ void * irm_sanitize() } if (kill(f->n_api, 0) < 0) { - struct shm_rbuff * rb = - shm_rbuff_open(f->n_api, f->port_id); bmp_release(irmd->port_ids, f->port_id); list_del(&f->next); LOG_INFO("AP-I %d gone, flow %d deallocated.", f->n_api, f->port_id); ipcp_flow_dealloc(f->n_1_api, f->port_id); - if (rb != NULL) - shm_rbuff_destroy(rb); irm_flow_destroy(f); continue; } if (kill(f->n_1_api, 0) < 0) { - struct shm_rbuff * rb = - shm_rbuff_open(f->n_1_api, f->port_id); list_del(&f->next); LOG_ERR("IPCP %d gone, flow %d removed.", f->n_1_api, f->port_id); - if (rb != NULL) - shm_rbuff_destroy(rb); irm_flow_destroy(f); } } -- cgit v1.2.3