quota.h revision 0df9428baed48afaff90b4d4f03792d2fd756a43
#ifndef QUOTA_H
#define QUOTA_H
struct mail;
struct mailbox;
struct mail_user;
/* Message storage size kilobytes. */
#define QUOTA_NAME_STORAGE_KILOBYTES "STORAGE"
/* Message storage size bytes. This is used only internally. */
#define QUOTA_NAME_STORAGE_BYTES "STORAGE_BYTES"
/* Number of messages. */
#define QUOTA_NAME_MESSAGES "MESSAGE"
struct quota;
struct quota_root;
struct quota_root_iter;
struct quota_transaction_context;
struct quota_settings *quota_user_read_settings(struct mail_user *user);
void quota_settings_deinit(struct quota_settings **quota_set);
/* Set up a new quota root. */
struct quota_root_settings *
quota_root_settings_init(struct quota_settings *quota_set,
const char *root_def);
void quota_root_settings_deinit(struct quota_root_settings **root_set);
/* Add a new rule too the quota root. Returns 0 if ok, -1 if rule is invalid. */
int quota_root_add_rule(struct quota_root_settings *root_set,
const char *rule_def, const char **error_r);
/* Add a new warning rule for the quota root. Returns 0 if ok, -1 if rule is
invalid. */
int quota_root_add_warning_rule(struct quota_root_settings *root_set,
const char *rule_def, const char **error_r);
/* Initialize quota for the given user. */
struct quota *quota_init(struct quota_settings *quota_set,
struct mail_user *user);
void quota_deinit(struct quota **quota);
/* List all quota roots. Returned quota roots are freed by quota_deinit(). */
struct quota_root_iter *quota_root_iter_init(struct mailbox *box);
struct quota_root *quota_root_iter_next(struct quota_root_iter *iter);
void quota_root_iter_deinit(struct quota_root_iter **iter);
/* Return quota root or NULL. */
struct quota_root *quota_root_lookup(struct mail_user *user, const char *name);
/* Returns name of the quota root. */
const char *quota_root_get_name(struct quota_root *root);
/* Return a list of all resources set for the quota root. */
const char *const *quota_root_get_resources(struct quota_root *root);
/* Returns 1 if quota value was found, 0 if not, -1 if error. */
int quota_get_resource(struct quota_root *root, const char *mailbox_name,
const char *name, uint64_t *value_r, uint64_t *limit_r);
/* Returns 0 if OK, -1 if error (eg. permission denied, invalid name). */
int quota_set_resource(struct quota_root *root, const char *name,
uint64_t value, const char **error_r);
/* Start a new quota transaction. */
struct quota_transaction_context *quota_transaction_begin(struct mailbox *box);
/* Commit quota transaction. Returns 0 if ok, -1 if failed. */
int quota_transaction_commit(struct quota_transaction_context **ctx);
/* Rollback quota transaction changes. */
void quota_transaction_rollback(struct quota_transaction_context **ctx);
/* Allocate from quota if there's space. Returns 1 if updated, 0 if not,
-1 if error. If mail size is larger than even maximum allowed quota,
too_large_r is set to TRUE. */
int quota_try_alloc(struct quota_transaction_context *ctx,
struct mail *mail, bool *too_large_r);
/* Like quota_try_alloc(), but don't actually allocate anything. */
int quota_test_alloc(struct quota_transaction_context *ctx,
uoff_t size, bool *too_large_r);
/* Update quota by allocating/freeing space used by mail. */
void quota_alloc(struct quota_transaction_context *ctx, struct mail *mail);
void quota_free(struct quota_transaction_context *ctx, struct mail *mail);
void quota_free_bytes(struct quota_transaction_context *ctx,
uoff_t physical_size);
/* Mark the quota to be recalculated */
void quota_recalculate(struct quota_transaction_context *ctx);
#endif