Implemented some entry functions

This commit is contained in:
Alexei KADIR 2024-02-17 02:28:17 +01:00
parent a2339d7515
commit d13a2e3053

View File

@ -1,10 +1,12 @@
#include "entry.h" #include "entry.h"
#include "utils.h" #include "utils.h"
#include "disk.h"
#include <stdlib.h> #include <stdlib.h>
#include <string.h> #include <string.h>
#include <errno.h> #include <errno.h>
#include <unistd.h>
#include <sys/stat.h> #include <sys/stat.h>
bool is_entry_id_valid(const char* entry_id) { bool is_entry_id_valid(const char* entry_id) {
@ -62,3 +64,104 @@ Result entry_exists(const char* entry_id, bool* out_exists) {
return SUCCESS; return SUCCESS;
} }
Result add_root_entry(const char* entry_id, uint64_t size) {
// Check that the entry does not exist
bool exists;
Result result = entry_exists(entry_id, &exists);
if (result != SUCCESS)
return result;
if (exists) {
log_message(LOG_LEVEL_ERROR, "Entry '%s' already exists.", entry_id);
return FAILURE;
}
// Get the path of the entry
char* path;
result = get_entry_path(entry_id, &path);
if (result != SUCCESS)
return result;
// Create the directory
int return_code = mkdir(path, 0755);
// Free the path as it is no longer needed
free(path);
// Check if the directory was created
if (return_code != 0) {
log_message(LOG_LEVEL_ERROR, "Failed to create the entry '%s' (%s).", entry_id, strerror(errno));
return FAILURE;
}
// Get the disk path
char* disk_path;
result = get_entry_disk_path(entry_id, &disk_path);
if (result != SUCCESS) {
remove_entry(entry_id);
return result;
}
// Create the disk
result = create_root_disk(disk_path, size, 0644);
// Free the disk path as it is no longer needed
free(disk_path);
// Remove the entry if the disk could not be created
if (result != SUCCESS) {
remove_entry(entry_id);
return result;
}
return SUCCESS;
}
Result remove_entry(const char* entry_id) {
// Remove the disk
char* disk_path;
Result result = get_entry_disk_path(entry_id, &disk_path);
if (result == SUCCESS) {
unlink(disk_path);
free(disk_path);
}
// Get the path of the entry
char* path;
result = get_entry_path(entry_id, &path);
if (result != SUCCESS)
return result;
// Remove the directory
int return_code = rmdir(path);
// Free the path as it is no longer needed
free(path);
// Check if the directory was removed
if (return_code != 0) {
log_message(LOG_LEVEL_ERROR, "Failed to remove the entry '%s' (%s).", entry_id, strerror(errno));
return FAILURE;
}
return SUCCESS;
}
Result get_entry_disk_path(const char* entry_id, char** out_path) {
*out_path = NULL;
// Get the path of the entry
char* path;
Result result = get_entry_path(entry_id, &path);
if (result != SUCCESS)
return result;
// Format the disk path
result = format(out_path, "%s/disk", path);
// Free the path as it is no longer needed
free(path);
return result;
}