diff options
Diffstat (limited to 'xlators/features/changelog/lib')
4 files changed, 98 insertions, 55 deletions
diff --git a/xlators/features/changelog/lib/examples/c/get-changes-multi.c b/xlators/features/changelog/lib/examples/c/get-changes-multi.c index 8f23c81c2a0..ae404bc7ad6 100644 --- a/xlators/features/changelog/lib/examples/c/get-changes-multi.c +++ b/xlators/features/changelog/lib/examples/c/get-changes-multi.c @@ -70,6 +70,10 @@ main (int argc, char **argv) brick++; fill_brick_spec (brick, "/export/z2/zwoop"); + ret = gf_changelog_init (NULL); + if (ret) + goto error_return; + ret = gf_changelog_register_generic ((struct gf_brick_spec *)bricks, 2, 1, "/tmp/multi-changes.log", 9, NULL); diff --git a/xlators/features/changelog/lib/src/changelog.h b/xlators/features/changelog/lib/src/changelog.h index d7048ff2508..1e0df053a96 100644 --- a/xlators/features/changelog/lib/src/changelog.h +++ b/xlators/features/changelog/lib/src/changelog.h @@ -97,6 +97,9 @@ gf_changelog_done (char *file); /* newer flexible API */ int +gf_changelog_init (void *xl); + +int gf_changelog_register_generic (struct gf_brick_spec *bricks, int count, int ordered, char *logfile, int lvl, void *xl); diff --git a/xlators/features/changelog/lib/src/gf-changelog-helpers.h b/xlators/features/changelog/lib/src/gf-changelog-helpers.h index 17b8862a89b..4247cb46718 100644 --- a/xlators/features/changelog/lib/src/gf-changelog-helpers.h +++ b/xlators/features/changelog/lib/src/gf-changelog-helpers.h @@ -179,7 +179,8 @@ typedef struct gf_private { #define RESTORE_THIS() \ do { \ - THIS = old_this; \ + if (old_this) \ + THIS = old_this; \ } while (0) /** APIs and the rest */ diff --git a/xlators/features/changelog/lib/src/gf-changelog.c b/xlators/features/changelog/lib/src/gf-changelog.c index 8f33eb01013..e1cfdb038fa 100644 --- a/xlators/features/changelog/lib/src/gf-changelog.c +++ b/xlators/features/changelog/lib/src/gf-changelog.c @@ -50,7 +50,7 @@ gf_private_t *gf_changelog_alloc_priv () int ret = 0; gf_private_t *priv = NULL; - priv = calloc (1, sizeof (gf_private_t)); + priv = GF_CALLOC (1, sizeof (*priv), gf_changelog_mt_priv_t); if (!priv) goto error_return; INIT_LIST_HEAD (&priv->connections); @@ -63,7 +63,7 @@ gf_private_t *gf_changelog_alloc_priv () return priv; free_priv: - free (priv); + GF_FREE (priv); error_return: return NULL; } @@ -80,9 +80,8 @@ gf_changelog_ctx_defaults_init (glusterfs_ctx_t *ctx) int ret = -1; ret = xlator_mem_acct_init (THIS, gf_changelog_mt_end); - if (ret != 0) { - return ret; - } + if (ret != 0) + return -1; ctx->process_uuid = generate_glusterfs_ctx_id (); if (!ctx->process_uuid) @@ -149,7 +148,7 @@ gf_changelog_ctx_defaults_init (glusterfs_ctx_t *ctx) } /* TODO: cleanup ctx defaults */ -static void +void gf_changelog_cleanup_this (xlator_t *this) { glusterfs_ctx_t *ctx = NULL; @@ -161,15 +160,12 @@ gf_changelog_cleanup_this (xlator_t *this) syncenv_destroy (ctx->env); free (ctx); - if (this->private) - free (this->private); - this->private = NULL; this->ctx = NULL; } static int -gf_changelog_init_this () +gf_changelog_init_context () { glusterfs_ctx_t *ctx = NULL; @@ -199,50 +195,7 @@ gf_changelog_init_this () static int gf_changelog_init_master () { - int ret = 0; - gf_private_t *priv = NULL; - glusterfs_ctx_t *ctx = NULL; - - ret = gf_changelog_init_this (); - if (ret != 0) - goto error_return; - master = THIS; - - priv = gf_changelog_alloc_priv (); - if (!priv) - goto cleanup_master; - master->private = priv; - - /* poller thread */ - ret = pthread_create (&priv->poller, - NULL, changelog_rpc_poller, master); - if (ret != 0) { - gf_log (master->name, GF_LOG_ERROR, - "failed to spawn poller thread"); - goto cleanup_master; - } - - return 0; - - cleanup_master: - master->private = NULL; - gf_changelog_cleanup_this (master); - error_return: - return -1; -} - -/* ctor/dtor */ - -void -__attribute__ ((constructor)) gf_changelog_ctor (void) -{ - (void) gf_changelog_init_master (); -} - -void -__attribute__ ((destructor)) gf_changelog_dtor (void) -{ - gf_changelog_cleanup_this (master); + return gf_changelog_init_context (); } /* TODO: cleanup clnt/svc on failure */ @@ -450,6 +403,88 @@ gf_changelog_setup_logging (xlator_t *this, char *logfile, int loglevel) return 0; } +static int +gf_changelog_set_master (xlator_t *master, void *xl) +{ + int32_t ret = 0; + xlator_t *this = NULL; + xlator_t *old_this = NULL; + gf_private_t *priv = NULL; + + this = xl; + if (!this || !this->ctx) { + ret = gf_changelog_init_master (); + if (ret) + return -1; + this = THIS; + } + + master->ctx = this->ctx; + + INIT_LIST_HEAD (&master->volume_options); + SAVE_THIS (THIS); + + ret = xlator_mem_acct_init (THIS, gf_changelog_mt_end); + if (ret != 0) + goto restore_this; + + priv = gf_changelog_alloc_priv (); + if (!priv) { + ret = -1; + goto restore_this; + } + + if (!xl) { + /* poller thread */ + ret = pthread_create (&priv->poller, + NULL, changelog_rpc_poller, THIS); + if (ret != 0) { + GF_FREE (priv); + gf_log (master->name, GF_LOG_ERROR, + "failed to spawn poller thread"); + goto restore_this; + } + } + + master->private = priv; + + restore_this: + RESTORE_THIS (); + + return ret; +} + +int +gf_changelog_init (void *xl) +{ + int ret = 0; + + if (master) + return 0; + + master = calloc (1, sizeof (*master)); + if (!master) + goto error_return; + + master->name = strdup ("gfchangelog"); + if (!master->name) + goto dealloc_master; + + ret = gf_changelog_set_master (master, xl); + if (ret) + goto dealloc_name; + + return 0; + + dealloc_name: + free (master->name); + dealloc_master: + free (master); + master = NULL; + error_return: + return -1; +} + int gf_changelog_register_generic (struct gf_brick_spec *bricks, int count, int ordered, char *logfile, int lvl, void *xl) |