/Users/maurits/Documents/studie/afstuderen/biosphere/daemon/service.c File Reference

#include "service.h"
#include "core_services.h"
#include "mutex.h"
#include "node.h"
#include "settings.h"
#include <copy.h>
#include <list.h>
#include <http_common.h>
#include <io.h>
#include <str.h>
#include <type.h>
#include <xml.h>
#include <assert.h>
#include <apr_pools.h>
#include <apr_file_io.h>
#include <apr_strings.h>
#include <stdio.h>

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Data Structures
struct	service_info
Functions
bs_status	init_service (apr_pool_t *mp)
bs_status	add_service (bs_definition *def, service_request_handler handler)
bs_status	remove_service (const char *name)
bs_status	get_services (bs_definition **def, apr_pool_t *mp)
static bs_status	handle_service_request_remotely (const bs_service_request *request, bs_service_response **response, apr_pool_t *mp)
bs_status	handle_service_request (const bs_service_request *request, bs_service_response **response, void *mp)
Variables
apr_pool_t *	global_mp
static bs_list *	services_pool = NULL

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Function Documentation

bs_status add_service	(	bs_definition *	def,
		service_request_handler	handler
	)

Add a service to the services pool. Since the service is meant to persist, it will be allocated from the global memory pool.

Parameters:

	def	Service definition structure
	handler	Function pointer to handler function

Returns:

status code

Definition at line 105 of file service.c.

References BS_OK, BS_SERVICE_DOUBLE, service_info::def, global_mp, service_info::handler, list_append(), list_index(), list_size(), lock_pool_mux(), lock_service_mux(), bs_definition::name, services_pool, streq(), unlock_pool_mux(), and unlock_service_mux().

Referenced by init_service(), and load_module().

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bs_status get_services	(	bs_definition **	def,
		apr_pool_t *	mp
	)

Gather all service definitions of the core services and the various modules into a single definition.

Parameters:

	def	Result pointer to the definition to populate
	mp	Memory pool to allocate from

Returns:

Status code.

Definition at line 154 of file service.c.

References BS_ERROR, BS_OK, service_info::def, list_index(), list_size(), lock_service_mux(), merge_def_with_def(), new_bs_definition(), runtestsuite::rv, services_pool, and unlock_service_mux().

Referenced by handle_http_get().

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bs_status handle_service_request	(	const bs_service_request *	request,
		bs_service_response **	response,
		void *	mp
	)

Handle a service request. First, the pool of installed services is searched for a suitable service. Then the handler of this service is called and the response is returned in the result pointer argument.

Parameters:

	request	The service request to be serviced
	response	Pointer where the result will be stored
	mp	Memory pool to allocate from (void pointer for compatibility).

Returns:

Status code

Definition at line 205 of file service.c.

References BS_ERROR, BS_OK, copy_response(), global_mp, handle_service_request_remotely(), list_index(), list_size(), lock_pool_mux(), lock_service_mux(), pool, request_corresponds_with_definition(), runtestsuite::rv, services_pool, unlock_pool_mux(), and unlock_service_mux().

Referenced by handle_http_post(), and load_module().

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static bs_status handle_service_request_remotely	(	const bs_service_request *	request,
		bs_service_response **	response,
		apr_pool_t *	mp
	)			[static]

Try to service the request by using a remote service from another node.

Parameters:

	request	The request to service
	response	Pointer to a place where the response will be stored
	mp	Memory pool to allocate from

Returns:

Status code

Definition at line 184 of file service.c.

References node_address::address, node_info::address, BS_NO_SERVICE, BS_OK, connect_and_post(), get_servicing_node(), node_address::port, and runtestsuite::rv.

Referenced by handle_service_request().

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bs_status init_service

(

apr_pool_t *

mp

)

Initialize the services subsystem by setting up the appropriate data structures. After that create the wrapper around several functions that makes up the core service.

Parameters:

mp

Memory pool to use.

Returns:

Status code

Definition at line 71 of file service.c.

References add_service(), BIOSPHERED_PREFIX, BS_OK, core_service_request_handler(), CORE_SERVICES_DEFINITION_FILE, len(), new_list(), read_file_into_buf(), runtestsuite::rv, services_pool, and xlate_from_xml().

Referenced by main().

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bs_status remove_service

(

const char *

name

)

Remove the named service.

Parameters:

name

Name of the service

Returns:

Status code.

Definition at line 136 of file service.c.

References BS_OK, list_index(), list_remove(), list_size(), lock_service_mux(), services_pool, streq(), and unlock_service_mux().

Referenced by unload_all_modules(), and unload_module().

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Variable Documentation

bs_list* services_pool = NULL [static]

A list holding the service_info structures of all installed services.

Definition at line 59 of file service.c.

Referenced by add_service(), get_services(), handle_service_request(), init_service(), and remove_service().

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