Compare commits
5 Commits
Author | SHA1 | Date | |
---|---|---|---|
bded7b49eb | |||
301e4d33c2 | |||
692796adae | |||
4f10bd81b2 | |||
b9408b7b46 |
BIN
Algorigramme TP2 opti_algo.pdf
Normal file
BIN
Algorigramme TP2 opti_algo.pdf
Normal file
Binary file not shown.
31
compte rendutp2.txt
Normal file
31
compte rendutp2.txt
Normal file
@ -0,0 +1,31 @@
|
||||
Compte rendu
|
||||
|
||||
daemon.c :
|
||||
|
||||
create_daemon() :
|
||||
La complexité est de 4 car il y a les 2 boucles if et la boucle for et +1 s'il se passe rien
|
||||
|
||||
ping_request() : La complexite est de 2 ca il y'a une boucle if + 1 s'il ne se passe rien
|
||||
|
||||
send_check() : La complexite est de 3 car il y'a 2 boucles if + 1 s'il se passe rien.
|
||||
|
||||
check_keep_working() : La complexite est de 4 car il y a le premier if, le 2eme if et dans le 3eme if on compte les 2 else.
|
||||
|
||||
daemon_work() : Le copmlexité est de 3 si if(db_connect()) fonctionne et fonctionne pas et +1 s'il ne se passe rien.
|
||||
|
||||
|
||||
db-sqlite.c :
|
||||
|
||||
db_connect() : La complexité est de 1 car il y'a juste le return.
|
||||
db_disconnect() : La complexité est de 1 également juste le return.
|
||||
insert_hourly_report : La complexité est de 1 car il n'y a aucune boucle
|
||||
|
||||
|
||||
ping-report.c :
|
||||
|
||||
La complexité est de 5 car il y a 5 chemins possible dans celui-ci.
|
||||
|
||||
|
||||
stats.c :
|
||||
|
||||
get_ping-from_temp_log : La complexité est de 13 car 13 chemins. (Voir l'arbre)
|
@ -22,104 +22,70 @@
|
||||
Return value :
|
||||
Ping value as a string or NULL if an error occured
|
||||
*/
|
||||
/*@null@*/char* get_ping_from_temp_log(){
|
||||
|
||||
/* Variables */
|
||||
/*@null@*/char* get_ping_from_temp_log() {
|
||||
FILE* fd = NULL;
|
||||
char* read_line = NULL;
|
||||
size_t n = 0;
|
||||
size_t nmatch = 2;
|
||||
regex_t *p_reg;
|
||||
regmatch_t* pmatch;
|
||||
regex_t* p_reg = malloc(sizeof(*p_reg));
|
||||
regmatch_t* pmatch = NULL;
|
||||
char* ping = NULL;
|
||||
int start;
|
||||
int end;
|
||||
size_t size_ping;
|
||||
|
||||
/* regex struct memory allocation */
|
||||
p_reg = (regex_t *) malloc(sizeof(*p_reg));
|
||||
if(p_reg == NULL){
|
||||
return ping; /* NULL */
|
||||
}
|
||||
if (!p_reg) return NULL;
|
||||
|
||||
/* Open ping log file */
|
||||
fd = fopen("/var/log/ping-report/last-ping.log","r");
|
||||
if(fd == NULL){
|
||||
fd = fopen("/var/log/ping-report/last-ping.log", "r");
|
||||
if (!fd) {
|
||||
free(p_reg);
|
||||
return ping; /* NULL */
|
||||
return NULL;
|
||||
}
|
||||
|
||||
/* Construct regex to get ping from log file */
|
||||
if(regcomp(p_reg,"time=(.*) ms",REG_EXTENDED) != 0){
|
||||
if(p_reg != NULL){
|
||||
free(p_reg);
|
||||
}
|
||||
(void) fclose(fd);
|
||||
return ping; /* NULL */
|
||||
if (regcomp(p_reg, "time=(.*) ms", REG_EXTENDED) != 0) {
|
||||
cleanup(fd, p_reg, NULL, NULL);
|
||||
return NULL;
|
||||
}
|
||||
|
||||
/* match info memory allocation */
|
||||
pmatch = malloc(sizeof(*pmatch) * nmatch);
|
||||
if(pmatch == NULL){
|
||||
(void) fclose(fd);
|
||||
regfree(p_reg);
|
||||
free(p_reg);
|
||||
return ping; /* NULL */
|
||||
if (!pmatch) {
|
||||
cleanup(fd, p_reg, NULL, NULL);
|
||||
return NULL;
|
||||
}
|
||||
|
||||
/* Read file */
|
||||
while(getline(&read_line,&n,fd) != -1){
|
||||
|
||||
if(read_line == NULL){
|
||||
break;
|
||||
}
|
||||
|
||||
/* Exec regex to find ping */
|
||||
|
||||
if(regexec(p_reg,read_line,nmatch,pmatch,0) == 0){
|
||||
|
||||
/* Extract ping position from read line */
|
||||
start = (int) pmatch[1].rm_so;
|
||||
end = (int) pmatch[1].rm_eo;
|
||||
size_ping = (size_t) (end - start);
|
||||
|
||||
/* ping string memory allocation */
|
||||
ping = malloc(sizeof(char) * (size_ping+2));
|
||||
if(ping == NULL){
|
||||
free(read_line);
|
||||
read_line = NULL;
|
||||
n = 0;
|
||||
break;
|
||||
}
|
||||
|
||||
/* Create ping string */
|
||||
(void) strncpy(ping, &read_line[start], size_ping);
|
||||
ping[size_ping]='\n';
|
||||
ping[size_ping+1]='\0';
|
||||
|
||||
/* Free memory */
|
||||
while (getline(&read_line, &n, fd) != -1) {
|
||||
if (regexec(p_reg, read_line, nmatch, pmatch, 0) == 0) {
|
||||
ping = extract_ping(read_line, pmatch);
|
||||
free(read_line);
|
||||
read_line = NULL;
|
||||
n = 0;
|
||||
break;
|
||||
}
|
||||
|
||||
free(read_line);
|
||||
read_line = NULL;
|
||||
n = 0;
|
||||
}
|
||||
|
||||
/* free allocated memory */
|
||||
regfree(p_reg);
|
||||
free(p_reg);
|
||||
free(pmatch);
|
||||
if(read_line != NULL){
|
||||
free(read_line);
|
||||
cleanup(fd, p_reg, pmatch, read_line);
|
||||
return ping;
|
||||
}
|
||||
|
||||
void cleanup(FILE* fd, regex_t* p_reg, regmatch_t* pmatch, char* read_line) {
|
||||
if (fd) fclose(fd);
|
||||
if (p_reg) {
|
||||
regfree(p_reg);
|
||||
free(p_reg);
|
||||
}
|
||||
if (pmatch) free(pmatch);
|
||||
if (read_line) free(read_line);
|
||||
}
|
||||
|
||||
char* extract_ping(char* read_line, regmatch_t* pmatch) {
|
||||
int start = (int)pmatch[1].rm_so;
|
||||
int end = (int)pmatch[1].rm_eo;
|
||||
size_t size_ping = (size_t)(end - start);
|
||||
char* ping = malloc(sizeof(char) * (size_ping + 2));
|
||||
|
||||
if (ping) {
|
||||
strncpy(ping, &read_line[start], size_ping);
|
||||
ping[size_ping] = '\n';
|
||||
ping[size_ping + 1] = '\0';
|
||||
}
|
||||
|
||||
(void) fclose(fd);
|
||||
|
||||
/* ping may be null, then it must mean that the ping request was lost */
|
||||
return ping;
|
||||
}
|
||||
|
||||
|
Loading…
Reference in New Issue
Block a user