shm-path: remove directory hierarchy on destroy

[lttng-tools.git] / src / bin / lttng-sessiond / buffer-registry.c

diff --git a/src/bin/lttng-sessiond/buffer-registry.c b/src/bin/lttng-sessiond/buffer-registry.c
index b96e585001c9bf7f420b0aac1ce274329550ce7c..b4667a41b84f6ae5e3ccf03d2215cfe86feeefd6 100644 (file)
--- a/src/bin/lttng-sessiond/buffer-registry.c
+++ b/src/bin/lttng-sessiond/buffer-registry.c
@@ -107,7 +107,7 @@ void buffer_reg_init_uid_registry(void)
  */
 int buffer_reg_uid_create(uint64_t session_id, uint32_t bits_per_long, uid_t uid,
                enum lttng_domain_type domain, struct buffer_reg_uid **regp,
-               const char *shm_path)
+               const char *root_shm_path, const char *shm_path)
 {
        int ret = 0;
        struct buffer_reg_uid *reg = NULL;
@@ -133,6 +133,8 @@ int buffer_reg_uid_create(uint64_t session_id, uint32_t bits_per_long, uid_t uid
        reg->uid = uid;
        reg->domain = domain;
        if (shm_path[0]) {
+               strncpy(reg->root_shm_path, root_shm_path, sizeof(reg->root_shm_path));
+               reg->root_shm_path[sizeof(reg->root_shm_path) - 1] = '\0';
                strncpy(reg->shm_path, shm_path, sizeof(reg->shm_path));
                reg->shm_path[sizeof(reg->shm_path) - 1] = '\0';
                DBG3("shm path '%s' is assigned to uid buffer registry for session id %" PRIu64,
@@ -233,7 +235,7 @@ void buffer_reg_init_pid_registry(void)
  * Return 0 on success else a negative value and regp is untouched.
  */
 int buffer_reg_pid_create(uint64_t session_id, struct buffer_reg_pid **regp,
-               const char *shm_path)
+               const char *root_shm_path, const char *shm_path)
 {
        int ret = 0;
        struct buffer_reg_pid *reg = NULL;
@@ -257,6 +259,8 @@ int buffer_reg_pid_create(uint64_t session_id, struct buffer_reg_pid **regp,
        /* A cast is done here so we can use the session ID as a u64 ht node. */
        reg->session_id = session_id;
        if (shm_path[0]) {
+               strncpy(reg->root_shm_path, root_shm_path, sizeof(reg->root_shm_path));
+               reg->root_shm_path[sizeof(reg->root_shm_path) - 1] = '\0';
                strncpy(reg->shm_path, shm_path, sizeof(reg->shm_path));
                reg->shm_path[sizeof(reg->shm_path) - 1] = '\0';
                DBG3("shm path '%s' is assigned to pid buffer registry for session id %" PRIu64,