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Improve comments on Rhizome db functions

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This commit is contained in:
Andrew Bettison 2013-09-30 16:15:01 +09:30
parent 394870502d
commit a04fc263f9
1 changed files with 14 additions and 7 deletions
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21
rhizome_database.c
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@ -511,6 +511,11 @@ static int _sqlite_exec_prepared(struct __sourceloc __whence, int log_level, sql
return sqlite_code_ok(stepcode) ? rowcount : -1;
}
/* Execute an SQL command that returns no value. If an error occurs then logs it at ERROR level and
* returns -1. Otherwise returns the number of rows changed by the command.
*
* @author Andrew Bettison <andrew@servalproject.com>
*/
static int _sqlite_vexec_void(struct __sourceloc __whence, int log_level, sqlite_retry_state *retry, const char *sqlformat, va_list ap)
{
strbuf stmt = strbuf_alloca(8192);
@ -523,9 +528,9 @@ static int _sqlite_vexec_void(struct __sourceloc __whence, int log_level, sqlite
return sqlite3_changes(rhizome_db);
}
/* Convenience wrapper for executing an SQL command that returns no value.
* If an error occurs then logs it at ERROR level and returns -1. Otherwise returns the number of
* rows changed by the command.
/* Convenience wrapper for executing an SQL command that returns no value. If an error occurs then
* logs it at ERROR level and returns -1. Otherwise returns the number of rows changed by the
* command.
*
* @author Andrew Bettison <andrew@servalproject.com>
*/
@ -1244,10 +1249,12 @@ int rhizome_update_file_priority(const char *fileid)
return 0;
}
/* Search the database for a manifest having the same name and payload content,
and if the version is known, having the same version.
@author Andrew Bettison <andrew@servalproject.com>
/* Search the database for a manifest having the same name and payload content, and if the version
* is known, having the same version. Returns 1 if a duplicate is found (setting *found to point to
* the duplicate's manifest), returns 0 if no duplicate is found (leaving *found unchanged).
* Returns -1 on error (leaving *found undefined).
*
* @author Andrew Bettison <andrew@servalproject.com>
*/
int rhizome_find_duplicate(const rhizome_manifest *m, rhizome_manifest **found)
{