X-Git-Url: https://git.m6w6.name/?p=m6w6%2Fext-raphf;a=blobdiff_plain;f=php_raphf.h;h=6e785bedc9fedc4546a471478e80199b6572e89e;hp=00b47a90ac57289017958fa652421106a6638834;hb=8b4959e8cd9953a923b0825a6aeba75addc389a9;hpb=6d04f5be0a7ac5ff0d6da2d167c8f1c833dcbaff diff --git a/php_raphf.h b/php_raphf.h index 00b47a9..6e785be 100644 --- a/php_raphf.h +++ b/php_raphf.h @@ -13,8 +13,6 @@ #ifndef PHP_RAPHF_H #define PHP_RAPHF_H -#ifndef DOXYGEN - extern zend_module_entry raphf_module_entry; #define phpext_raphf_ptr &raphf_module_entry @@ -32,396 +30,7 @@ extern zend_module_entry raphf_module_entry; # include "TSRM.h" #endif -#endif - -/** - * A resource constructor. - * - * @param opaque is the \a data from php_persistent_handle_provide() - * @param init_arg is the \a init_arg from php_resource_factory_init() - * @return the created (persistent) handle - */ -typedef void *(*php_resource_factory_handle_ctor_t)(void *opaque, void *init_arg); - -/** - * The copy constructor of a resource. - * - * @param opaque the factory's data - * @param handle the (persistent) handle to copy - */ -typedef void *(*php_resource_factory_handle_copy_t)(void *opaque, void *handle); - -/** - * The destructor of a resource. - * - * @param opaque the factory's data - * @param handle the handle to destroy - */ -typedef void (*php_resource_factory_handle_dtor_t)(void *opaque, void *handle); - -/** - * The resource ops consisting of a ctor, a copy ctor and a dtor. - * - * Define this ops and register them with php_persistent_handle_provide() - * in MINIT. - */ -typedef struct php_resource_factory_ops { - /** The resource constructor */ - php_resource_factory_handle_ctor_t ctor; - /** The resource's copy constructor */ - php_resource_factory_handle_copy_t copy; - /** The resource's destructor */ - php_resource_factory_handle_dtor_t dtor; -} php_resource_factory_ops_t; - -/** - * The resource factory. - */ -typedef struct php_resource_factory { - /** The resource ops */ - php_resource_factory_ops_t fops; - /** Opaque user data */ - void *data; - /** User data destructor */ - void (*dtor)(void *data); - /** How often this factory is referenced */ - unsigned refcount; -} php_resource_factory_t; - -/** - * Initialize a resource factory. - * - * If you register a \a dtor for a resource factory used with a persistent - * handle provider, be sure to call php_persistent_handle_cleanup() for your - * registered provider in MSHUTDOWN, else the dtor will point to no longer - * available memory if the extension has already been unloaded. - * - * @param f the factory to initialize; if NULL allocated on the heap - * @param fops the resource ops to assign to the factory - * @param data opaque user data; may be NULL - * @param dtor a destructor for the data; may be NULL - * @return \a f or an allocated resource factory - */ -PHP_RAPHF_API php_resource_factory_t *php_resource_factory_init( - php_resource_factory_t *f, php_resource_factory_ops_t *fops, void *data, - void (*dtor)(void *data)); - -/** - * Increase the refcount of the resource factory. - * - * @param rf the resource factory - * @return the new refcount - */ -PHP_RAPHF_API unsigned php_resource_factory_addref(php_resource_factory_t *rf); - -/** - * Destroy the resource factory. - * - * If the factory's refcount reaches 0, the \a dtor for \a data is called. - * - * @param f the resource factory - */ -PHP_RAPHF_API void php_resource_factory_dtor(php_resource_factory_t *f); - -/** - * Destroy and free the resource factory. - * - * Calls php_resource_factory_dtor() and frees \a f if the factory's refcount - * reached 0. - * - * @param f the resource factory - */ -PHP_RAPHF_API void php_resource_factory_free(php_resource_factory_t **f); - -/** - * Construct a resource by the resource factory \a f - * - * @param f the resource factory - * @param init_arg for the resource constructor - * @return the new resource - */ -PHP_RAPHF_API void *php_resource_factory_handle_ctor(php_resource_factory_t *f, - void *init_arg); - -/** - * Create a copy of the resource \a handle - * - * @param f the resource factory - * @param handle the resource to copy - * @return the copy - */ -PHP_RAPHF_API void *php_resource_factory_handle_copy(php_resource_factory_t *f, - void *handle); - -/** - * Destroy (and free) the resource - * - * @param f the resource factory - * @param handle the resource to destroy - */ -PHP_RAPHF_API void php_resource_factory_handle_dtor(php_resource_factory_t *f, - void *handle); - -/** - * Persistent handles storage - */ -typedef struct php_persistent_handle_list { - /** Storage of free resources */ - HashTable free; - /** Count of acquired resources */ - ulong used; -} php_persistent_handle_list_t; - -/** - * Definition of a persistent handle provider. - * Holds a resource factory an a persistent handle list. - */ -typedef struct php_persistent_handle_provider { - /** - * The list of free handles. - * Hash of "ident" => array(handles) entries. Persistent handles are - * acquired out of this list. - */ - php_persistent_handle_list_t list; - - /** - * The resource factory. - * New handles are created by this factory. - */ - php_resource_factory_t rf; -} php_persistent_handle_provider_t; - -typedef struct php_persistent_handle_factory php_persistent_handle_factory_t; - -/** - * Wakeup the persistent handle on re-acquisition. - */ -typedef void (*php_persistent_handle_wakeup_t)( - php_persistent_handle_factory_t *f, void **handle); -/** - * Retire the persistent handle on release. - */ -typedef void (*php_persistent_handle_retire_t)( - php_persistent_handle_factory_t *f, void **handle); - -/** - * Definition of a persistent handle factory. - * - * php_persistent_handle_concede() will return a pointer to a - * php_persistent_handle_factory if a provider for the \a name has - * been registered with php_persistent_handle_provide(). - */ -struct php_persistent_handle_factory { - /** The persistent handle provider */ - php_persistent_handle_provider_t *provider; - /** The persistent handle wakeup routine; may be NULL */ - php_persistent_handle_wakeup_t wakeup; - /** The persistent handle retire routine; may be NULL */ - php_persistent_handle_retire_t retire; - - /** The ident for which this factory manages resources */ - zend_string *ident; - - /** Whether it has to be free'd on php_persistent_handle_abandon() */ - unsigned free_on_abandon:1; -}; - -/** - * Register a persistent handle provider in MINIT. - * - * Registers a factory provider for \a name_str with \a fops resource factory - * ops. Call this in your MINIT. - * - * A php_resource_factory will be created with \a fops, \a data and \a dtor - * and will be stored together with a php_persistent_handle_list in the global - * raphf hash. - * - * A php_persistent_handle_factory can then be retrieved by - * php_persistent_handle_concede() at runtime. - * - * @param name the provider name, e.g. "http\Client\Curl" - * @param fops the resource factory ops - * @param data opaque user data - * @param dtor \a data destructor - * @return SUCCESS/FAILURE - */ -PHP_RAPHF_API ZEND_RESULT_CODE php_persistent_handle_provide( - zend_string *name, php_resource_factory_ops_t *fops, - void *data, void (*dtor)(void *)); - -/** - * Retrieve a persistent handle factory at runtime. - * - * If a persistent handle provider has been registered for \a name, a new - * php_persistent_handle_factory creating resources in the \a ident - * namespace will be constructed. - * - * The wakeup routine \a wakeup and the retire routine \a retire will be - * assigned to the new php_persistent_handle_factory. - * - * @param a pointer to a factory; allocated on the heap if NULL - * @param name the provider name, e.g. "http\Client\Curl" - * @param ident the subsidiary namespace, e.g. "php.net:80" - * @param wakeup any persistent handle wakeup routine - * @param retire any persistent handle retire routine - * @return \a a or an allocated persistent handle factory - */ -PHP_RAPHF_API php_persistent_handle_factory_t *php_persistent_handle_concede( - php_persistent_handle_factory_t *a, - zend_string *name, zend_string *ident, - php_persistent_handle_wakeup_t wakeup, - php_persistent_handle_retire_t retire); - -/** - * Abandon the persistent handle factory. - * - * Destroy a php_persistent_handle_factory created by - * php_persistent_handle_concede(). If the memory for the factory was allocated, - * it will automatically be free'd. - * - * @param a the persistent handle factory to destroy - */ -PHP_RAPHF_API void php_persistent_handle_abandon( - php_persistent_handle_factory_t *a); - -/** - * Acquire a persistent handle. - * - * That is, either re-use a resource from the free list or create a new handle. - * - * If a handle is acquired from the free list, the - * php_persistent_handle_factory::wakeup callback will be executed for that - * handle. - * - * @param a the persistent handle factory - * @param init_arg the \a init_arg for php_resource_factory_handle_ctor() - * @return the acquired resource - */ -PHP_RAPHF_API void *php_persistent_handle_acquire( - php_persistent_handle_factory_t *a, void *init_arg); - -/** - * Release a persistent handle. - * - * That is, either put it back into the free list for later re-use or clean it - * up with php_resource_factory_handle_dtor(). - * - * If a handle is put back into the free list, the - * php_persistent_handle_factory::retire callback will be executed for that - * handle. - * - * @param a the persistent handle factory - * @param handle the handle to release - */ -PHP_RAPHF_API void php_persistent_handle_release( - php_persistent_handle_factory_t *a, void *handle); - -/** - * Copy a persistent handle. - * - * Let the underlying resource factory copy the \a handle. - * - * @param a the persistent handle factory - * @param handle the resource to accrete - */ -PHP_RAPHF_API void *php_persistent_handle_accrete( - php_persistent_handle_factory_t *a, void *handle); - -/** - * Retrieve persistent handle resource factory ops. - * - * These ops can be used to mask a persistent handle factory as - * resource factory itself, so you can transparently use the - * resource factory API, both for persistent and non-persistent - * ressources. - * - * Example: - * ~~~~~~~~~~~~~~~{.c} - * php_resource_factory_t *create_my_rf(zend_string *persistent_id) - * { - * php_resource_factory_t *rf; - * - * if (persistent_id) { - * php_persistent_handle_factory_t *pf; - * php_resource_factory_ops_t *ops; - * zend_string *ns = zend_string_init("my", 2, 1); - * - * ops = php_persistent_handle_get_resource_factory_ops(); - * pf = php_persistent_handle_concede(NULL, ns, persistent_id, NULL, NULL); - * rf = php_persistent_handle_resource_factory_init(NULL, pf); - * zend_string_release(ns); - * } else { - * rf = php_resource_factory_init(NULL, &myops, NULL, NULL); - * } - * return rf; - * } - * ~~~~~~~~~~~~~~~ - */ -PHP_RAPHF_API php_resource_factory_ops_t * -php_persistent_handle_get_resource_factory_ops(void); - -/** - * Create a resource factory for persistent handles. - * - * This will create a resource factory with persistent handle ops, which wraps - * the provided reource factory \a pf. - * - * @param a the persistent handle resource factory to initialize - * @param pf the resource factory to wrap - */ -PHP_RAPHF_API php_resource_factory_t * -php_persistent_handle_resource_factory_init(php_resource_factory_t *a, - php_persistent_handle_factory_t *pf); - -/** - * Check whether a resource factory is a persistent handle resource factory. - * - * @param a the resource factory to check - */ -PHP_RAPHF_API zend_bool php_resource_factory_is_persistent( - php_resource_factory_t *a); - -/** - * Clean persistent handles up. - * - * Destroy persistent handles of provider \a name and in subsidiary - * namespace \a ident. - * - * If \a name is NULL, all persistent handles of all providers with a - * matching \a ident will be cleaned up. - * - * If \a identr is NULL all persistent handles of the provider will be - * cleaned up. - * - * Ergo, if both, \a name and \a ident are NULL, then all - * persistent handles will be cleaned up. - * - * You must call this in MSHUTDOWN, if your resource factory ops hold a - * registered php_resource_factory::dtor, else the dtor will point to - * memory not any more available if the extension has already been unloaded. - * - * @param name the provider name; may be NULL - * @param ident the subsidiary namespace name; may be NULL - */ -PHP_RAPHF_API void php_persistent_handle_cleanup(zend_string *name, - zend_string *ident); - -/** - * Retrieve statistics about the current process/thread's persistent handles. - * - * @return a HashTable like: - * ~~~~~~~~~~~~~~~ - * [ - * "name" => [ - * "ident" => [ - * "used" => 1, - * "free" => 0, - * ] - * ] - * ] - * ~~~~~~~~~~~~~~~ - */ -PHP_RAPHF_API HashTable *php_persistent_handle_statall(HashTable *ht); +#include "php_raphf_api.h" #endif /* PHP_RAPHF_H */