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protocomm_httpd: Allow applications to pass HTTPD handle

Browse Source 
This will be useful if a webserver is already running and the application
does not want protocomm to start a new instance.

Signed-off-by: Piyush Shah <piyush@espressif.com>
This commit is contained in:
Piyush Shah 2019-02-01 18:20:37 +05:30 committed by bot
parent ebaa944a9a
commit 3e6b402756
3 changed files with 69 additions and 29 deletions
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28
components/protocomm/include/transports/protocomm_httpd.h
View File

@ -22,10 +22,11 @@
.task_priority = tskIDLE_PRIORITY + 5, \
}
/**
* @brief Config parameters for protocomm HTTP server
*/
/** Protocomm HTTP Server Configuration */
typedef struct {
uint16_t port; /*!< Port on which the http server will listen */
/**
@ -34,6 +35,27 @@ typedef struct {
*/
size_t stack_size;
unsigned task_priority; /*!< Priority of server task */
} protocomm_http_server_config_t; /*!< HTTP Server Configuration, if HTTP Server has not been started already */
/** Protocomm HTTPD Configuration Data */
typedef union {
/** HTTP Server Handle, if ext_handle_provided is set to true */
void *handle;
/** HTTP Server Configuration, if a server is not already active */
protocomm_http_server_config_t config;
} protocomm_httpd_config_data_t;
/**
* @brief Config parameters for protocomm HTTP server
*/
typedef struct {
/** Flag to indicate of an external HTTP Server Handle has been provided.
* In such as case, protocomm will use the same HTTP Server and not start
* a new one internally.
*/
bool ext_handle_provided;
/** Protocomm HTTPD Configuration Data */
protocomm_httpd_config_data_t data;
} protocomm_httpd_config_t;
/**

63
components/protocomm/src/transports/protocomm_httpd.c
View File

@ -26,6 +26,7 @@
static const char *TAG = "protocomm_httpd";
static protocomm_t *pc_httpd; /* The global protocomm instance for HTTPD */
static bool pc_ext_httpd_handle_provided;
static uint32_t session_id = PROTOCOMM_NO_SESSION_ID;
#define MAX_REQ_BODY_LEN 4096
@ -124,7 +125,7 @@ out:
return ret;
}
esp_err_t protocomm_httpd_add_endpoint(const char *ep_name,
static esp_err_t protocomm_httpd_add_endpoint(const char *ep_name,
protocomm_req_handler_t req_handler,
void *priv_data)
{
@ -207,28 +208,36 @@ esp_err_t protocomm_httpd_start(protocomm_t *pc, const protocomm_httpd_config_t
return ESP_ERR_NOT_SUPPORTED;
}
/* Private data will point to the HTTP server handle */
pc->priv = calloc(1, sizeof(httpd_handle_t));
if (!pc->priv) {
ESP_LOGE(TAG, "Malloc failed for HTTP server handle");
return ESP_ERR_NO_MEM;
if (config->ext_handle_provided) {
if (config->data.handle) {
pc->priv = config->data.handle;
pc_ext_httpd_handle_provided = true;
} else {
return ESP_ERR_INVALID_ARG;
}
} else {
/* Private data will point to the HTTP server handle */
pc->priv = calloc(1, sizeof(httpd_handle_t));
if (!pc->priv) {
ESP_LOGE(TAG, "Malloc failed for HTTP server handle");
return ESP_ERR_NO_MEM;
}
/* Configure the HTTP server */
httpd_config_t server_config = HTTPD_DEFAULT_CONFIG();
server_config.server_port = config->data.config.port;
server_config.stack_size = config->data.config.stack_size;
server_config.task_priority = config->data.config.task_priority;
server_config.lru_purge_enable = true;
server_config.max_open_sockets = 1;
esp_err_t err;
if ((err = httpd_start((httpd_handle_t *)pc->priv, &server_config)) != ESP_OK) {
ESP_LOGE(TAG, "Failed to start http server: %s", esp_err_to_name(err));
free(pc->priv);
return err;
}
}
/* Configure the HTTP server */
httpd_config_t server_config = HTTPD_DEFAULT_CONFIG();
server_config.server_port = config->port;
server_config.stack_size = config->stack_size;
server_config.task_priority = config->task_priority;
server_config.lru_purge_enable = true;
server_config.max_open_sockets = 1;
esp_err_t err;
if ((err = httpd_start((httpd_handle_t *)pc->priv, &server_config)) != ESP_OK) {
ESP_LOGE(TAG, "Failed to start http server: %s", esp_err_to_name(err));
free(pc->priv);
return err;
}
pc->add_endpoint = protocomm_httpd_add_endpoint;
pc->remove_endpoint = protocomm_httpd_remove_endpoint;
pc_httpd = pc;
@ -238,9 +247,13 @@ esp_err_t protocomm_httpd_start(protocomm_t *pc, const protocomm_httpd_config_t
esp_err_t protocomm_httpd_stop(protocomm_t *pc)
{
if ((pc != NULL) && (pc == pc_httpd)) {
httpd_handle_t *server_handle = (httpd_handle_t *) pc_httpd->priv;
httpd_stop(*server_handle);
free(server_handle);
if (!pc_ext_httpd_handle_provided) {
httpd_handle_t *server_handle = (httpd_handle_t *) pc_httpd->priv;
httpd_stop(*server_handle);
free(server_handle);
} else {
pc_ext_httpd_handle_provided = false;
}
pc_httpd->priv = NULL;
pc_httpd = NULL;
return ESP_OK;

7
docs/en/api-reference/provisioning/protocomm.rst
View File

@ -54,8 +54,13 @@ For complete example see :example:`provisioning/softap_prov`
{
protocomm_t *pc = protocomm_new();
/* Config for protocomm_httpd_start() */
protocomm_httpd_config_t pc_config = PROTOCOMM_HTTPD_DEFAULT_CONFIG();
protocomm_httpd_config_t pc_config = {
.data = {
.config = PROTOCOMM_HTTPD_DEFAULT_CONFIG()
}
};
/* Start protocomm server on top of HTTP */
protocomm_httpd_start(pc, &pc_config);