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Renamed listfile functions to index.

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default 2022-11-24 08:00:35 +01:00
parent cde8650df7
commit 9d7b35940f
2 changed files with 121 additions and 121 deletions
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234
data.c
View File

@ -191,7 +191,123 @@ double mtime(char *fn)
}
/** object database 2.1+ **/
/** database 2.1+ **/
int index_add(const char *fn, const char *md5)
/* adds an md5 to an index */
{
int status = 200;
FILE *f;
if ((f = fopen(fn, "a")) != NULL) {
flock(fileno(f), LOCK_EX);
fprintf(f, "%s\n", md5);
fclose(f);
}
else
status = 500;
return status;
}
int index_del(const char *fn, const char *md5)
/* deletes an md5 from an index */
{
int status = 404;
FILE *i, *o;
if ((i = fopen(fn, "r")) != NULL) {
flock(fileno(i), LOCK_EX);
xs *nfn = xs_fmt("%s.new", fn);
char line[256];
if ((o = fopen(nfn, "w")) != NULL) {
while (fgets(line, sizeof(line), i) != NULL) {
line[32] = '\0';
if (memcmp(line, md5, 32) != 0)
fprintf(o, "%s\n", line);
}
fclose(o);
xs *ofn = xs_fmt("%s.bak", fn);
link(fn, ofn);
rename(nfn, fn);
}
else
status = 500;
fclose(i);
}
else
status = 500;
return status;
}
d_char *index_list(const char *fn, int max)
/* returns an index as a list */
{
d_char *list = NULL;
FILE *f;
int n = 0;
if ((f = fopen(fn, "r")) != NULL) {
flock(fileno(f), LOCK_SH);
char line[256];
list = xs_list_new();
while (n < max && fgets(line, sizeof(line), f) != NULL) {
line[32] = '\0';
list = xs_list_append(list, line);
n++;
}
fclose(f);
}
return list;
}
d_char *index_list_desc(const char *fn, int max)
/* returns an index as a list, in reverse order */
{
d_char *list = NULL;
FILE *f;
int n = 0;
if ((f = fopen(fn, "r")) != NULL) {
flock(fileno(f), LOCK_SH);
char line[256];
list = xs_list_new();
/* move to the end minus one entry */
if (!fseek(f, 0, SEEK_END) && !fseek(f, -33, SEEK_CUR)) {
while (n < max && fgets(line, sizeof(line), f) != NULL) {
line[32] = '\0';
list = xs_list_append(list, line);
n++;
/* move backwards 2 entries */
if (fseek(f, -66, SEEK_CUR) == -1)
break;
}
}
fclose(f);
}
return list;
}
d_char *_object_fn_by_md5(const char *md5)
{
@ -295,122 +411,6 @@ int object_del(const char *id)
}
int listfile_add_md5(const char *fn, const char *md5)
/* adds an md5 to a list */
{
int status = 200;
FILE *f;
if ((f = fopen(fn, "a")) != NULL) {
flock(fileno(f), LOCK_EX);
fprintf(f, "%s\n", md5);
fclose(f);
}
else
status = 500;
return status;
}
int listfile_del_md5(const char *fn, const char *md5)
/* deletes an md5 from a list */
{
int status = 404;
FILE *i, *o;
if ((i = fopen(fn, "r")) != NULL) {
flock(fileno(i), LOCK_EX);
xs *nfn = xs_fmt("%s.new", fn);
char line[256];
if ((o = fopen(nfn, "w")) != NULL) {
while (fgets(line, sizeof(line), i) != NULL) {
line[32] = '\0';
if (memcmp(line, md5, 32) != 0)
fprintf(o, "%s\n", line);
}
fclose(o);
xs *ofn = xs_fmt("%s.bak", fn);
link(fn, ofn);
rename(nfn, fn);
}
else
status = 500;
fclose(i);
}
else
status = 500;
return status;
}
d_char *listfile_get_n(const char *fn, int max)
/* returns a list */
{
d_char *list = NULL;
FILE *f;
int n = 0;
if ((f = fopen(fn, "r")) != NULL) {
flock(fileno(f), LOCK_SH);
char line[256];
list = xs_list_new();
while (n < max && fgets(line, sizeof(line), f) != NULL) {
line[32] = '\0';
list = xs_list_append(list, line);
n++;
}
fclose(f);
}
return list;
}
d_char *listfile_get_inv_n(const char *fn, int max)
/* returns a list, inversely */
{
d_char *list = NULL;
FILE *f;
int n = 0;
if ((f = fopen(fn, "r")) != NULL) {
flock(fileno(f), LOCK_SH);
char line[256];
list = xs_list_new();
/* move to the end minus one entry */
if (!fseek(f, 0, SEEK_END) && !fseek(f, -33, SEEK_CUR)) {
while (n < max && fgets(line, sizeof(line), f) != NULL) {
line[32] = '\0';
list = xs_list_append(list, line);
n++;
/* move backwards 2 entries */
if (fseek(f, -66, SEEK_CUR) == -1)
break;
}
}
fclose(f);
}
return list;
}
d_char *_follower_fn(snac *snac, char *actor)
{
xs *md5 = xs_md5_hex(actor, strlen(actor));

8
snac.h
View File

@ -52,10 +52,10 @@ void srv_archive(char *direction, char *req, char *payload, int p_size,
double mtime(char *fn);
int listfile_add_md5(const char *fn, const char *md5);
int listfile_del_md5(const char *fn, const char *md5);
d_char *listfile_get_n(const char *fn, int max);
d_char *listfile_get_inv_n(const char *fn, int max);
int index_add(const char *fn, const char *md5);
int index_del(const char *fn, const char *md5);
d_char *index_list(const char *fn, int max);
d_char *index_list_desc(const char *fn, int max);
int follower_add(snac *snac, char *actor, char *msg);
int follower_del(snac *snac, char *actor);