| index : pacman | |
| Archlinux32 fork of pacman | gitolite user |
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| -rw-r--r-- | lib/libalpm/alpm.h | 122 |
diff --git a/lib/libalpm/alpm.h b/lib/libalpm/alpm.h index b1e3887e..06d0f5a3 100644 --- a/lib/libalpm/alpm.h +++ b/lib/libalpm/alpm.h @@ -50,102 +50,198 @@ extern "C" { #include <alpm_list.h> /* - * Arch Linux Package Management library + * Opaque Structures */ -/* - * Opaque Structures +/** The libalpm context handle. + * + * This struct represents an instance of libalpm. */ typedef struct __alpm_handle_t alpm_handle_t; + +/** A database. + * + * A database is a container that stores metadata about packages. + * + * A database can be located on the local filesystem or on a remote server. + * + * To use a database, it must first be registered via \link alpm_register_syncdb \endlink. + * If the database is already preasant in dbpath then it will be usable. Otherwise, + * the database needs to be downloaded using \link alpm_db_update \endlink. Even if the + * source of the database is the local filesystem. + * + * After this, the database can be used to query packages and groups. Any packages or groups + * from the database will continue to be owned by the database and do not need to be freed by + * the user. They will be freed when the database is unregistered. + * + * Databases are automatically unregistered when the \link alpm_handle_t \endlink is released. + */ typedef struct __alpm_db_t alpm_db_t; + + +/** A package. + * + * A package can be loaded from disk via \link alpm_pkg_load \endlink or retrieved from a database. + * Packages from databases are automatically freed when the database is unregistered. Packages loaded + * from a file must be freed manually. + * + * Packages can then be queried for metadata or added to a \link alpm_trans_t transaction \endlink + * to be added or removed from the system. + */ typedef struct __alpm_pkg_t alpm_pkg_t; + +/** Transaction structure used internally by libalpm */ typedef struct __alpm_trans_t alpm_trans_t; -/** @addtogroup alpm_api_errors Error Codes + +/** @addtogroup alpm_api ALPM + * @brief The libalpm Public API + * @{ + */ + +/** @addtogroup alpm_errors Error Codes + * Error codes returned by libalpm. * @{ */ + +/** libalpm's error type */ typedef enum _alpm_errno_t { + /** No error */ ALPM_ERR_OK = 0, + /** Failed to allocate memory */ ALPM_ERR_MEMORY, + /** A system error occurred */ ALPM_ERR_SYSTEM, + /** Permmision denied */ ALPM_ERR_BADPERMS, + /** Should be a file */ ALPM_ERR_NOT_A_FILE, + /** Should be a directory */ ALPM_ERR_NOT_A_DIR, + /** Function was called with invalid arguments */ ALPM_ERR_WRONG_ARGS, + /** Insufficient disk space */ ALPM_ERR_DISK_SPACE, /* Interface */ + /** Handle should be null */ ALPM_ERR_HANDLE_NULL, + /** Handle should not be null */ ALPM_ERR_HANDLE_NOT_NULL, + /** Failed to acquire lock */ ALPM_ERR_HANDLE_LOCK, /* Databases */ + /** Failed to open database */ ALPM_ERR_DB_OPEN, + /** Failed to create database */ ALPM_ERR_DB_CREATE, + /** Database should not be null */ ALPM_ERR_DB_NULL, + /** Database should be null */ ALPM_ERR_DB_NOT_NULL, + /** The database could not be found */ ALPM_ERR_DB_NOT_FOUND, + /** Database is invalid */ ALPM_ERR_DB_INVALID, + /** Database has an invalid signature */ ALPM_ERR_DB_INVALID_SIG, + /** The localdb is in a newer/older format than libalpm expects */ ALPM_ERR_DB_VERSION, + /** Failed to write to the database */ ALPM_ERR_DB_WRITE, + /** Failed to remove entry from database */ ALPM_ERR_DB_REMOVE, /* Servers */ + /** Server URL is in an invalid format */ ALPM_ERR_SERVER_BAD_URL, + /** The database has no configured servers */ ALPM_ERR_SERVER_NONE, /* Transactions */ + /** A transaction is already initialized */ ALPM_ERR_TRANS_NOT_NULL, + /** A transaction has not been initialized */ ALPM_ERR_TRANS_NULL, + /** Duplicate target in transaction */ ALPM_ERR_TRANS_DUP_TARGET, + /** A transaction has not been initialized */ ALPM_ERR_TRANS_NOT_INITIALIZED, + /** Transaction has not been prepared */ ALPM_ERR_TRANS_NOT_PREPARED, + /** Transaction was aborted */ ALPM_ERR_TRANS_ABORT, + /** Failed to interrupt transaction */ ALPM_ERR_TRANS_TYPE, + /** Tried to commit transaction without locking the database */ ALPM_ERR_TRANS_NOT_LOCKED, + /** A hook failed to run */ ALPM_ERR_TRANS_HOOK_FAILED, /* Packages */ + /** Package not found */ ALPM_ERR_PKG_NOT_FOUND, + /** Package is in ignorepkg */ ALPM_ERR_PKG_IGNORED, + /** Package is invalid */ ALPM_ERR_PKG_INVALID, + /** Package has an invalid checksum */ ALPM_ERR_PKG_INVALID_CHECKSUM, + /** Package has an invalid signature */ ALPM_ERR_PKG_INVALID_SIG, + /** Package does not have a signature */ ALPM_ERR_PKG_MISSING_SIG, + /** Cannot open the package file */ ALPM_ERR_PKG_OPEN, + /** Failed to remove package files */ ALPM_ERR_PKG_CANT_REMOVE, + /** Package has an invalid name */ ALPM_ERR_PKG_INVALID_NAME, + /** Package has an invalid architecture */ ALPM_ERR_PKG_INVALID_ARCH, + /** Unused */ ALPM_ERR_PKG_REPO_NOT_FOUND, /* Signatures */ + /** Signatures are missing */ ALPM_ERR_SIG_MISSING, + /** Signatures are invalid */ ALPM_ERR_SIG_INVALID, /* Dependencies */ + /** Dependencies could not be satisfied */ ALPM_ERR_UNSATISFIED_DEPS, + /** Conflicting dependencies */ ALPM_ERR_CONFLICTING_DEPS, + /** Files conflict */ ALPM_ERR_FILE_CONFLICTS, /* Misc */ + /** Download failed */ ALPM_ERR_RETRIEVE, + /** Invalid Regex */ ALPM_ERR_INVALID_REGEX, /* External library errors */ + /** Error in libarchive */ ALPM_ERR_LIBARCHIVE, + /** Error in libcurl */ ALPM_ERR_LIBCURL, + /** Error in external download program */ ALPM_ERR_EXTERNAL_DOWNLOAD, + /** Error in gpgme */ ALPM_ERR_GPGME, - /* Missing compile-time features */ + /** Missing compile-time features */ ALPM_ERR_MISSING_CAPABILITY_SIGNATURES } alpm_errno_t; -/** Returns the current error code from the handle. */ +/** Returns the current error code from the handle. + * @param handle the context handle + * @return the current error code of the handle + */ alpm_errno_t alpm_errno(alpm_handle_t *handle); -/** Returns the string corresponding to an error number. */ +/** Returns the string corresponding to an error number. + * @param err the error code to get the string for + * @return the string relating to the given error code + */ const char *alpm_strerror(alpm_errno_t err); -/* End of alpm_api_errors */ +/* End of alpm_errors */ /** @} */ -/** @addtogroup alpm_api Public API - * The libalpm Public API - * @{ - */ - typedef int64_t alpm_time_t; /* |