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Log SQLite PRAGMA statements as well

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This commit is contained in:
Andrew Bettison 2013-11-13 12:45:32 +10:30
parent 1634d68dd0
commit a14326deeb
1 changed files with 23 additions and 1 deletions
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24
rhizome_database.c
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@ -107,11 +107,32 @@ int is_debug_rhizome_ads()
static int (*sqlite_trace_func)() = is_debug_rhizome;
const struct __sourceloc *sqlite_trace_whence = NULL;
static int sqlite_trace_done;
/* This is called by SQLite when executing a statement using sqlite3_step(). Unfortunately, it is
* not called on PRAGMA statements, and possibly others. Hence the use of the profile callback (see
* below).
*
* @author Andrew Bettison <andrew@servalproject.com>
*/
static void sqlite_trace_callback(void *context, const char *rendered_sql)
{
if (sqlite_trace_func())
logMessage(LOG_LEVEL_DEBUG, sqlite_trace_whence ? *sqlite_trace_whence : __HERE__, "%s", rendered_sql);
++sqlite_trace_done;
}
/* This is called by SQLite when an executed statement finishes. We use it to log rendered SQL
* statements when the trace callback (above) has not been called, eg, for PRAGMA statements. This
* requires that the 'sqlite_trace_done' static be reset to zero whenever a new prepared statement
* is about to be stepped.
*
* @author Andrew Bettison <andrew@servalproject.com>
*/
static void sqlite_profile_callback(void *context, const char *rendered_sql, sqlite_uint64 nanosec)
{
if (!sqlite_trace_done)
sqlite_trace_callback(context, rendered_sql);
}
/* This function allows code like:
@ -153,7 +174,6 @@ void verify_bundles(){
sqlite3_int64 rowid = sqlite3_column_int64(statement, 0);
const void *manifest = sqlite3_column_blob(statement, 1);
size_t manifest_length = sqlite3_column_bytes(statement, 1);
rhizome_manifest *m=rhizome_new_manifest();
int ret=0;
ret = rhizome_read_manifest_file(m, manifest, manifest_length);
@ -236,6 +256,7 @@ int rhizome_opendb()
RETURN(WHYF("SQLite could not open database %s: %s", dbpath, sqlite3_errmsg(rhizome_db)));
}
sqlite3_trace(rhizome_db, sqlite_trace_callback, NULL);
sqlite3_profile(rhizome_db, sqlite_profile_callback, NULL);
int loglevel = (config.debug.rhizome) ? LOG_LEVEL_DEBUG : LOG_LEVEL_SILENT;
/* Read Rhizome configuration */
@ -826,6 +847,7 @@ int _sqlite_step(struct __sourceloc __whence, int log_level, sqlite_retry_state
IN();
int ret = -1;
sqlite_trace_whence = &__whence;
sqlite_trace_done = 0;
while (statement) {
int stepcode = sqlite3_step(statement);
switch (stepcode) {