Index: native_client_sdk/src/examples/hello_nacl_mounts/hello_nacl_mounts.c |
diff --git a/native_client_sdk/src/examples/hello_nacl_mounts/hello_nacl_mounts.c b/native_client_sdk/src/examples/hello_nacl_mounts/hello_nacl_mounts.c |
deleted file mode 100644 |
index 63543d73f30ad483a5820b55b680760bd62e2e3d..0000000000000000000000000000000000000000 |
--- a/native_client_sdk/src/examples/hello_nacl_mounts/hello_nacl_mounts.c |
+++ /dev/null |
@@ -1,361 +0,0 @@ |
-/* Copyright (c) 2012 The Chromium Authors. All rights reserved. |
- * Use of this source code is governed by a BSD-style license that can be |
- * found in the LICENSE file. |
- */ |
- |
-#include "hello_nacl_mounts.h" |
- |
-#include <assert.h> |
-#include <stdio.h> |
-#include <stdlib.h> |
-#include <string.h> |
-#include <pthread.h> |
- |
-#include "ppapi/c/pp_errors.h" |
-#include "ppapi/c/pp_module.h" |
-#include "ppapi/c/ppb.h" |
-#include "ppapi/c/ppb_instance.h" |
-#include "ppapi/c/ppb_messaging.h" |
-#include "ppapi/c/ppb_var.h" |
-#include "ppapi/c/ppp.h" |
-#include "ppapi/c/ppp_instance.h" |
-#include "ppapi/c/ppp_messaging.h" |
-#include "nacl_mounts/nacl_mounts.h" |
- |
-#include "handlers.h" |
-#include "queue.h" |
- |
-#define MIN(a, b) (((a) < (b)) ? (a) : (b)) |
- |
-#if defined(WIN32) |
-#define va_copy(d, s) ((d) = (s)) |
-#endif |
- |
-typedef struct { |
- const char* name; |
- HandleFunc function; |
-} FuncNameMapping; |
- |
- |
-static PP_Instance g_instance = 0; |
-static PPB_GetInterface get_browser_interface = NULL; |
-static PPB_Messaging* ppb_messaging_interface = NULL; |
-static PPB_Var* ppb_var_interface = NULL; |
- |
-static FuncNameMapping g_function_map[] = { |
- { "fopen", HandleFopen }, |
- { "fwrite", HandleFwrite }, |
- { "fread", HandleFread }, |
- { "fseek", HandleFseek }, |
- { "fclose", HandleFclose }, |
- { NULL, NULL }, |
-}; |
- |
-/** A handle to the thread the handles messages. */ |
-static pthread_t g_handle_message_thread; |
- |
-/** |
- * Create a new PP_Var from a C string. |
- * @param[in] str The string to convert. |
- * @return A new PP_Var with the contents of |str|. */ |
-struct PP_Var CStrToVar(const char* str) { |
- if (ppb_var_interface != NULL) { |
- return ppb_var_interface->VarFromUtf8(str, strlen(str)); |
- } |
- return PP_MakeUndefined(); |
-} |
- |
-/** |
- * Printf to a newly allocated C string. |
- * @param[in] format A printf format string. |
- * @param[in] args The printf arguments. |
- * @return The newly constructed string. Caller takes ownership. */ |
-char* VprintfToNewString(const char* format, va_list args) { |
- va_list args_copy; |
- int length; |
- char* buffer; |
- int result; |
- |
- va_copy(args_copy, args); |
- length = vsnprintf(NULL, 0, format, args); |
- buffer = (char*)malloc(length + 1); /* +1 for NULL-terminator. */ |
- result = vsnprintf(&buffer[0], length + 1, format, args_copy); |
- assert(result == length); |
- return buffer; |
-} |
- |
-/** |
- * Printf to a newly allocated C string. |
- * @param[in] format A print format string. |
- * @param[in] ... The printf arguments. |
- * @return The newly constructed string. Caller takes ownership. */ |
-char* PrintfToNewString(const char* format, ...) { |
- va_list args; |
- char* result; |
- va_start(args, format); |
- result = VprintfToNewString(format, args); |
- va_end(args); |
- return result; |
-} |
- |
-/** |
- * Printf to a new PP_Var. |
- * @param[in] format A print format string. |
- * @param[in] ... The printf arguments. |
- * @return A new PP_Var. */ |
-struct PP_Var PrintfToVar(const char* format, ...) { |
- if (ppb_var_interface != NULL) { |
- char* string; |
- va_list args; |
- struct PP_Var var; |
- |
- va_start(args, format); |
- string = VprintfToNewString(format, args); |
- va_end(args); |
- |
- var = ppb_var_interface->VarFromUtf8(string, strlen(string)); |
- free(string); |
- |
- return var; |
- } |
- |
- return PP_MakeUndefined(); |
-} |
- |
-/** |
- * Convert a PP_Var to a C string, given a buffer. |
- * @param[in] var The PP_Var to convert. |
- * @param[out] buffer The buffer to write to. |
- * @param[in] length The length of |buffer|. |
- * @return The number of characters written. */ |
-uint32_t VarToCStr(struct PP_Var var, char* buffer, uint32_t length) { |
- if (ppb_var_interface != NULL) { |
- uint32_t var_length; |
- const char* str = ppb_var_interface->VarToUtf8(var, &var_length); |
- /* str is NOT NULL-terminated. Copy using memcpy. */ |
- uint32_t min_length = MIN(var_length, length - 1); |
- memcpy(buffer, str, min_length); |
- buffer[min_length] = 0; |
- |
- return min_length; |
- } |
- |
- return 0; |
-} |
- |
-/** |
- * Given a message from JavaScript, parse it for functions and parameters. |
- * |
- * The format of the message is: |
- * function, param1, param2, param3, etc. |
- * where each element is separated by the \1 character. |
- * |
- * e.g. |
- * "function\1first parameter\1second parameter" |
- * |
- * How to use: |
- * char* function; |
- * char* params[4]; |
- * int num_params = ParseMessage(msg, &function, ¶ms, 4); |
- * |
- * @param[in, out] message The message to parse. This string is modified |
- * in-place. |
- * @param[out] out_function The function name. |
- * @param[out] out_params An array of strings, one for each parameter parsed. |
- * @param[in] max_params The maximum number of parameters to parse. |
- * @return The number of parameters parsed. */ |
-static size_t ParseMessage(char* message, |
- char** out_function, |
- char** out_params, |
- size_t max_params) { |
- char* separator; |
- char* param_start; |
- size_t num_params = 0; |
- |
- /* Parse the message: function\1param1\1param2\1param3,... */ |
- *out_function = &message[0]; |
- |
- separator = strchr(message, 1); |
- if (!separator) { |
- return num_params; |
- } |
- |
- *separator = 0; /* NULL-terminate function. */ |
- |
- while (separator && num_params < max_params) { |
- param_start = separator + 1; |
- separator = strchr(param_start, 1); |
- if (separator) { |
- *separator = 0; |
- out_params[num_params++] = param_start; |
- } |
- } |
- |
- out_params[num_params++] = param_start; |
- |
- return num_params; |
-} |
- |
-/** |
- * Given a function name, look up its handler function. |
- * @param[in] function_name The function name to look up. |
- * @return The handler function mapped to |function_name|. */ |
-static HandleFunc GetFunctionByName(const char* function_name) { |
- FuncNameMapping* map_iter = g_function_map; |
- for (; map_iter->name; ++map_iter) { |
- if (strcmp(map_iter->name, function_name) == 0) { |
- return map_iter->function; |
- } |
- } |
- |
- return NULL; |
-} |
- |
-/** Handle as message from JavaScript on the worker thread. |
- * |
- * @param[in] message The message to parse and handle. */ |
-static void HandleMessage(char* message) { |
- char* function_name; |
- char* params[MAX_PARAMS]; |
- size_t num_params; |
- char* output = NULL; |
- int result; |
- HandleFunc function; |
- |
- num_params = ParseMessage(message, &function_name, ¶ms[0], MAX_PARAMS); |
- |
- function = GetFunctionByName(function_name); |
- if (!function) { |
- /* Function name wasn't found. Error. */ |
- ppb_messaging_interface->PostMessage( |
- g_instance, PrintfToVar("Error: Unknown function \"%s\"", function)); |
- } |
- |
- /* Function name was found, call it. */ |
- result = (*function)(num_params, ¶ms[0], &output); |
- if (result != 0) { |
- /* Error. */ |
- struct PP_Var var; |
- if (output != NULL) { |
- var = PrintfToVar( |
- "Error: Function \"%s\" returned error %d. " |
- "Additional output: %s", function_name, result, output); |
- free(output); |
- } else { |
- var = PrintfToVar("Error: Function \"%s\" returned error %d.", |
- function_name, result); |
- } |
- |
- /* Post the error to JavaScript, so the user can see it. */ |
- ppb_messaging_interface->PostMessage(g_instance, var); |
- return; |
- } |
- |
- if (output != NULL) { |
- /* Function returned an output string. Send it to JavaScript. */ |
- ppb_messaging_interface->PostMessage(g_instance, CStrToVar(output)); |
- free(output); |
- } |
-} |
- |
-/** A worker thread that handles messages from JavaScript. |
- * @param[in] user_data Unused. |
- * @return unused. */ |
-void* HandleMessageThread(void* user_data) { |
- while (1) { |
- char* message = DequeueMessage(); |
- HandleMessage(message); |
- free(message); |
- } |
-} |
- |
- |
-static PP_Bool Instance_DidCreate(PP_Instance instance, |
- uint32_t argc, |
- const char* argn[], |
- const char* argv[]) { |
- g_instance = instance; |
- nacl_mounts_init_ppapi(instance, get_browser_interface); |
- mount( |
- "", /* source */ |
- "/persistent", /* target */ |
- "html5fs", /* filesystemtype */ |
- 0, /* mountflags */ |
- "type=PERSISTENT,expected_size=1048576"); /* data */ |
- |
- mount( |
- "", /* source. Use relative URL */ |
- "/http", /* target */ |
- "httpfs", /* filesystemtype */ |
- 0, /* mountflags */ |
- ""); /* data */ |
- |
- pthread_create(&g_handle_message_thread, NULL, &HandleMessageThread, NULL); |
- InitializeMessageQueue(); |
- |
- return PP_TRUE; |
-} |
- |
- |
-static void Instance_DidDestroy(PP_Instance instance) { |
-} |
- |
-static void Instance_DidChangeView(PP_Instance instance, |
- PP_Resource view_resource) { |
-} |
- |
-static void Instance_DidChangeFocus(PP_Instance instance, |
- PP_Bool has_focus) { |
-} |
- |
-static PP_Bool Instance_HandleDocumentLoad(PP_Instance instance, |
- PP_Resource url_loader) { |
- /* NaCl modules do not need to handle the document load function. */ |
- return PP_FALSE; |
-} |
- |
-static void Messaging_HandleMessage(PP_Instance instance, |
- struct PP_Var message) { |
- char buffer[1024]; |
- VarToCStr(message, &buffer[0], 1024); |
- if (!EnqueueMessage(strdup(buffer))) { |
- struct PP_Var var; |
- var = PrintfToVar( |
- "Warning: dropped message \"%s\" because the queue was full.", |
- message); |
- ppb_messaging_interface->PostMessage(g_instance, var); |
- } |
-} |
- |
-PP_EXPORT int32_t PPP_InitializeModule(PP_Module a_module_id, |
- PPB_GetInterface get_browser) { |
- get_browser_interface = get_browser; |
- ppb_messaging_interface = |
- (PPB_Messaging*)(get_browser(PPB_MESSAGING_INTERFACE)); |
- ppb_var_interface = (PPB_Var*)(get_browser(PPB_VAR_INTERFACE)); |
- return PP_OK; |
-} |
- |
- |
-PP_EXPORT const void* PPP_GetInterface(const char* interface_name) { |
- if (strcmp(interface_name, PPP_INSTANCE_INTERFACE) == 0) { |
- static PPP_Instance instance_interface = { |
- &Instance_DidCreate, |
- &Instance_DidDestroy, |
- &Instance_DidChangeView, |
- &Instance_DidChangeFocus, |
- &Instance_HandleDocumentLoad, |
- }; |
- return &instance_interface; |
- } else if (strcmp(interface_name, PPP_MESSAGING_INTERFACE) == 0) { |
- static PPP_Messaging messaging_interface = { |
- &Messaging_HandleMessage, |
- }; |
- return &messaging_interface; |
- } |
- return NULL; |
-} |
- |
- |
-PP_EXPORT void PPP_ShutdownModule() { |
-} |