Added some more signatures and implemented more functions
This commit is contained in:
parent
2a706fb01f
commit
96b522d521
@ -1,6 +1,12 @@
|
||||
#include "backing.h"
|
||||
|
||||
#include "utils.h"
|
||||
|
||||
#include <stdbool.h>
|
||||
#include <string.h>
|
||||
#include <unistd.h>
|
||||
#include <stdlib.h>
|
||||
#include <dirent.h>
|
||||
#include <sys/stat.h>
|
||||
|
||||
bool is_valid_backing_name(const char* name) {
|
||||
@ -25,7 +31,7 @@ char* get_backing_path(const char* name) {
|
||||
if (name == NULL)
|
||||
return NULL;
|
||||
|
||||
return format("%s/%s", "/var/lib/sandbox/backings", name);
|
||||
return format("%s/%s", "/var/lib/sandbox/backings", name); // TODO: Use a setting for the backings directory
|
||||
}
|
||||
|
||||
bool backing_exists(const char* name) {
|
||||
@ -52,6 +58,57 @@ bool backing_exists(const char* name) {
|
||||
return true;
|
||||
}
|
||||
|
||||
char** list_backings(void) {
|
||||
// Open the backings directory
|
||||
DIR* dir = opendir("/var/lib/sandbox/backings"); // TODO: Use a setting for the backings directory
|
||||
if (dir == NULL)
|
||||
return NULL;
|
||||
|
||||
// Count the number of backings
|
||||
size_t count = 0;
|
||||
struct dirent* entry;
|
||||
while ((entry = readdir(dir)) != NULL) {
|
||||
if (is_valid_backing_name(entry->d_name))
|
||||
count++;
|
||||
}
|
||||
|
||||
// Allocate the array
|
||||
char** backings = calloc(count + 1, sizeof(char*));
|
||||
if (backings == NULL) {
|
||||
closedir(dir);
|
||||
return NULL;
|
||||
}
|
||||
|
||||
// Reset the directory stream
|
||||
rewinddir(dir);
|
||||
|
||||
// Fill the array
|
||||
size_t i = 0;
|
||||
while ((entry = readdir(dir)) != NULL) {
|
||||
if (is_valid_backing_name(entry->d_name)) {
|
||||
backings[i] = strdup(entry->d_name);
|
||||
if (backings[i] == NULL) {
|
||||
closedir(dir);
|
||||
|
||||
for (size_t j = 0; j < i; j++)
|
||||
free(backings[j]);
|
||||
free(backings);
|
||||
|
||||
return NULL;
|
||||
}
|
||||
i++;
|
||||
}
|
||||
}
|
||||
|
||||
// Close the directory
|
||||
closedir(dir);
|
||||
|
||||
// Terminate the array
|
||||
backings[count] = NULL;
|
||||
|
||||
return backings;
|
||||
}
|
||||
|
||||
time_t get_backing_ctime(const char* name) {
|
||||
// As the name starts with the ctime, we can just convert the first part of the name to a time_t
|
||||
size_t len = strlen(name);
|
||||
@ -68,7 +125,39 @@ time_t get_backing_ctime(const char* name) {
|
||||
return 0;
|
||||
|
||||
time_t ctime = (time_t)strtoull(ctime_str, NULL, 10);
|
||||
|
||||
free(ctime_str);
|
||||
|
||||
return ctime;
|
||||
}
|
||||
|
||||
char* get_latest_backing(void) {
|
||||
// Get the backings
|
||||
char** backings = list_backings();
|
||||
if (backings == NULL)
|
||||
return NULL;
|
||||
|
||||
// Find the latest backing
|
||||
time_t latest_ctime = 0;
|
||||
char* latest_backing = NULL;
|
||||
|
||||
for (size_t i = 0; backings[i] != NULL; i++) {
|
||||
time_t ctime = get_backing_ctime(backings[i]);
|
||||
|
||||
if (ctime >= latest_ctime) {
|
||||
latest_ctime = ctime;
|
||||
latest_backing = backings[i];
|
||||
}
|
||||
}
|
||||
|
||||
// Duplicate the latest backing
|
||||
if (latest_backing != NULL)
|
||||
latest_backing = strdup(latest_backing);
|
||||
|
||||
// Free the backings
|
||||
for (size_t i = 0; backings[i] != NULL; i++)
|
||||
free(backings[i]);
|
||||
free(backings);
|
||||
|
||||
return latest_backing;
|
||||
}
|
27
src/entry.h
Normal file
27
src/entry.h
Normal file
@ -0,0 +1,27 @@
|
||||
#pragma once
|
||||
|
||||
#include <stdbool.h>
|
||||
#include <stdint.h>
|
||||
#include <time.h>
|
||||
|
||||
bool is_valid_entry_name(const char* name);
|
||||
|
||||
char* get_entry_path(const char* name);
|
||||
|
||||
bool entry_exists(const char* name);
|
||||
|
||||
char* get_entry_disk_path(const char* name);
|
||||
|
||||
char** list_entries(void);
|
||||
|
||||
time_t get_entry_mtime(const char* name);
|
||||
|
||||
char* find_oldest_entry(void);
|
||||
|
||||
bool create_entry(const char* name);
|
||||
|
||||
bool delete_entry(const char* name);
|
||||
|
||||
uint64_t get_available_size(void);
|
||||
|
||||
void reserve_space(uint64_t size);
|
@ -2,12 +2,26 @@
|
||||
|
||||
#include "utils.h"
|
||||
|
||||
#include "disk.h"
|
||||
#include "backing.h"
|
||||
|
||||
#include <stdarg.h>
|
||||
#include <stdio.h>
|
||||
#include <stdlib.h>
|
||||
|
||||
int main(int argc, char* argv[]) {
|
||||
char** backings = list_backings();
|
||||
|
||||
if (backings == NULL) {
|
||||
logmsg(LOG_ERROR, "Failed to list backings.");
|
||||
return 1;
|
||||
}
|
||||
|
||||
for (size_t i = 0; backings[i] != NULL; i++) {
|
||||
printf("%s\n", backings[i]);
|
||||
free(backings[i]);
|
||||
}
|
||||
|
||||
free(backings);
|
||||
|
||||
return 0;
|
||||
}
|
Loading…
Reference in New Issue
Block a user