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authorVolker Lendecke <vl@samba.org>2010-03-12 14:22:54 +0100
committerVolker Lendecke <vl@samba.org>2010-03-12 14:23:25 +0100
commit79100c242153ea174a4405afd45cbf635da313aa (patch)
treea48e26f1a73fb0ff1ebb592ac7b8c405004e2620 /source3/lib
parent1728b5fa6f0efd443799550ab630abd8282a3c9c (diff)
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s3: Add "g_lock_do" as a convenience wrapper function
Diffstat (limited to 'source3/lib')
-rw-r--r--source3/lib/g_lock.c64
1 files changed, 64 insertions, 0 deletions
diff --git a/source3/lib/g_lock.c b/source3/lib/g_lock.c
index e4c6d7c660..1726047886 100644
--- a/source3/lib/g_lock.c
+++ b/source3/lib/g_lock.c
@@ -700,3 +700,67 @@ NTSTATUS g_lock_get(struct g_lock_ctx *ctx, const char *name,
}
return NT_STATUS_OK;
}
+
+static bool g_lock_init_all(TALLOC_CTX *mem_ctx,
+ struct tevent_context **pev,
+ struct messaging_context **pmsg,
+ struct g_lock_ctx **pg_ctx)
+{
+ struct tevent_context *ev = NULL;
+ struct messaging_context *msg = NULL;
+ struct g_lock_ctx *g_ctx = NULL;
+
+ ev = tevent_context_init(mem_ctx);
+ if (ev == NULL) {
+ d_fprintf(stderr, "ERROR: could not init event context\n");
+ goto fail;
+ }
+ msg = messaging_init(mem_ctx, procid_self(), ev);
+ if (msg == NULL) {
+ d_fprintf(stderr, "ERROR: could not init messaging context\n");
+ goto fail;
+ }
+ g_ctx = g_lock_ctx_init(mem_ctx, msg);
+ if (g_ctx == NULL) {
+ d_fprintf(stderr, "ERROR: could not init g_lock context\n");
+ goto fail;
+ }
+
+ *pev = ev;
+ *pmsg = msg;
+ *pg_ctx = g_ctx;
+ return true;
+fail:
+ TALLOC_FREE(g_ctx);
+ TALLOC_FREE(msg);
+ TALLOC_FREE(ev);
+ return false;
+}
+
+NTSTATUS g_lock_do(const char *name, enum g_lock_type lock_type,
+ struct timeval timeout,
+ void (*fn)(void *private_data), void *private_data)
+{
+ struct tevent_context *ev = NULL;
+ struct messaging_context *msg = NULL;
+ struct g_lock_ctx *g_ctx = NULL;
+ NTSTATUS status;
+
+ if (!g_lock_init_all(talloc_tos(), &ev, &msg, &g_ctx)) {
+ status = NT_STATUS_ACCESS_DENIED;
+ goto done;
+ }
+
+ status = g_lock_lock(g_ctx, name, lock_type, timeout);
+ if (!NT_STATUS_IS_OK(status)) {
+ goto done;
+ }
+ fn(private_data);
+ g_lock_unlock(g_ctx, name);
+
+done:
+ TALLOC_FREE(g_ctx);
+ TALLOC_FREE(msg);
+ TALLOC_FREE(ev);
+ return status;
+}