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Export and document timestamp functions

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This commit is contained in:
Aris Adamantiadis
2010-12-28 22:11:02 +01:00
parent 361e37dc66
commit 31043334f4
2 changed files with 27 additions and 7 deletions
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26
tests/benchmarks/latency.c
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@ -34,7 +34,7 @@
* @brief Calculates the RTT of the host with ICMP ping, and returns the
* average of the calculated RTT.
* @param[in] host hostname to ping.
* @param[out] average average RTT in ms.
* @param[out] average average RTT in milliseconds.
* @returns 0 on success, -1 if there is an error.
* @warning relies on an external ping program which may not exist on
* certain OS.
@ -84,15 +84,20 @@ parseerror:
return -1;
}
struct timestamp_struct {
struct timeval timestamp;
};
static void timestamp_init(struct timestamp_struct *ts){
/** @internal
* @brief initialize a timestamp to the current time.
* @param[out] ts A timestamp_struct pointer.
*/
void timestamp_init(struct timestamp_struct *ts){
gettimeofday(&ts->timestamp,NULL);
}
static float elapsed_time(struct timestamp_struct *ts){
/** @internal
* @brief return the elapsed time since now and the moment ts was initialized.
* @param[in] ts An initialized timestamp_struct pointer.
* @return Elapsed time in milliseconds.
*/
float elapsed_time(struct timestamp_struct *ts){
struct timeval now;
time_t secdiff;
long usecdiff; /* may be negative */
@ -104,6 +109,13 @@ static float elapsed_time(struct timestamp_struct *ts){
return (float) (secdiff*1000) + ((float)usecdiff)/1000;
}
/** @internal
* @brief Calculates the RTT of the host with SSH channel operations, and
* returns the average of the calculated RTT.
* @param[in] session active SSH session to test.
* @param[out] average average RTT in milliseconds.
* @returns 0 on success, -1 if there is an error.
*/
int benchmarks_ssh_latency(ssh_session session, float *average){
float times[3];
struct timestamp_struct ts;