# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
-#
-# Targets the PNaCl platform
+
+# Provides PNaCl support for Nit.
#
# To use this module and compile for PNaCl, you must install the
# NaCl SDK (This file is based on Pepper 33).
# If NACL_SDK_ROOT is not set in your PATH, you have to work in
# 'nacl_sdk/pepper_your_pepper_version/getting_started/your_project_folder'.
-#
-# Provides PNaCl support for Nit.
module pnacl is platform
-`{
- #include <unistd.h>
- #include <stddef.h>
- #include <stdio.h>
- #include <string.h>
- #include <stdlib.h>
- #include <pthread.h>
+
+import standard
+intrude import standard::stream
+
+in "C Header" `{
#include "ppapi/c/pp_errors.h"
#include "ppapi/c/ppp.h"
#include "ppapi/c/ppp_instance.h"
#include "ppapi/c/ppp_messaging.h"
#include "ppapi/c/ppb_var_dictionary.h"
#include "ppapi/c/ppb_var_array.h"
+`}
+
+`{
+ #include <unistd.h>
+ #include <stddef.h>
+ #include <stdio.h>
+ #include <string.h>
+ #include <stdlib.h>
+ #include <pthread.h>
+ #include <poll.h>
#define MAX_DICTIONARY_QUEUE_SIZE 200
#define MAX_MESSAGE_QUEUE_SIZE 10
}
/* Hack in order to avoid the problem with file. */
- int poll(void *fds, int nfds, int timeout) { return 0; }
+ int poll(struct pollfd* fds, nfds_t nfds, int timeout) { return 0; }
`}
# Nit class representing a Pepper C API PP_Var typed as a Dictionary.
extern class PepperDictionary `{ struct PP_Var* `}
new `{
- struct PP_Var* recv = malloc( sizeof( struct PP_Var ) );
- *recv = g_varDictionaryInterface->Create();
- return recv;
+ struct PP_Var* self = malloc( sizeof( struct PP_Var ) );
+ *self = g_varDictionaryInterface->Create();
+ return self;
`}
# Get fonction using PepperVars.
# If 'key' is not a String typed PepperVar, or doesn't exist in the Dictionary, an undefined PepperVar is returned.
fun native_get(key: PepperVar): PepperVar `{
struct PP_Var* value = malloc( sizeof ( struct PP_Var ) );
- *value = g_varDictionaryInterface->Get(*recv, *key);
+ *value = g_varDictionaryInterface->Get(*self, *key);
return value;
`}
# Returns a Boolean indicating whether the operation succeeds.
fun native_set(key: PepperVar, value: PepperVar): Bool `{
PP_Bool b;
- b = g_varDictionaryInterface->Set(*recv, *key, *value);
+ b = g_varDictionaryInterface->Set(*self, *key, *value);
return b;
`}
#
# Takes a String typed PepperVar.
fun native_delete(key: PepperVar) `{
- g_varDictionaryInterface->Delete(*recv, *key);
+ g_varDictionaryInterface->Delete(*self, *key);
`}
# Deletes the specified key and its associated value, if the key exists.
# Takes a String typed PepperVar.
fun native_has_key(key: PepperVar): Bool `{
PP_Bool b;
- b = g_varDictionaryInterface->HasKey(*recv, *key);
+ b = g_varDictionaryInterface->HasKey(*self, *key);
return b;
`}
# Returns a PepperArray which contains all the keys of the Dictionary. The elements are string vars.
fun get_keys: PepperArray `{
struct PP_Var* array = malloc( sizeof( struct PP_Var ) );
- *array = g_varDictionaryInterface->GetKeys(*recv);
+ *array = g_varDictionaryInterface->GetKeys(*self);
return array;
`}
fun copy: PepperDictionary `{
struct PP_Var* varDictionary = malloc( sizeof( struct PP_Var ) );
*varDictionary = g_varDictionaryInterface->Create();
- *varDictionary = *recv;
+ *varDictionary = *self;
return varDictionary;
`}
end
extern class PepperArray `{ struct PP_Var* `}
new `{
- struct PP_Var* recv = malloc( sizeof( struct PP_Var ) );
- *recv = g_varArrayInterface->Create();
- return recv;
+ struct PP_Var* self = malloc( sizeof( struct PP_Var ) );
+ *self = g_varArrayInterface->Create();
+ return self;
`}
# Returns the element at the specified position as a PepperVar.
# If 'index' is larger than or equal to the array length, an undefined PepperVar is returned.
fun native_get(index: Int): PepperVar `{
struct PP_Var* value = malloc( sizeof( struct PP_Var ) );
- *value = g_varArrayInterface->Get(*recv, index);
+ *value = g_varArrayInterface->Get(*self, index);
return value;
`}
# Returns an int containing the length of the PepperArray.
fun length: Int `{
- int length = g_varArrayInterface->GetLength(*recv);
+ int length = g_varArrayInterface->GetLength(*self);
return length;
`}
# Returns a Boolean indicating whether the operation succeeds.
fun native_set(index: Int, value: PepperVar): Bool `{
PP_Bool b;
- b = g_varArrayInterface->Set(*recv, index, *value);
+ b = g_varArrayInterface->Set(*self, index, *value);
return b;
`}
# Returns a Boolean indicating whether the operation succeeds.
fun length=(length: Int): Bool `{
PP_Bool b;
- b = g_varArrayInterface->SetLength(*recv, length);
+ b = g_varArrayInterface->SetLength(*self, length);
return b;
`}
end
return null
end
- private fun isa_null: Bool `{ return recv->type == PP_VARTYPE_NULL; `}
- private fun isa_bool: Bool `{ return recv->type == PP_VARTYPE_BOOL; `}
- private fun isa_int: Bool `{ return recv->type == PP_VARTYPE_INT32; `}
- private fun isa_float: Bool `{ return recv->type == PP_VARTYPE_DOUBLE; `}
- private fun isa_string: Bool `{ return recv->type == PP_VARTYPE_STRING; `}
- private fun is_undefined: Bool `{ return recv->type == PP_VARTYPE_UNDEFINED; `}
+ private fun isa_null: Bool `{ return self->type == PP_VARTYPE_NULL; `}
+ private fun isa_bool: Bool `{ return self->type == PP_VARTYPE_BOOL; `}
+ private fun isa_int: Bool `{ return self->type == PP_VARTYPE_INT32; `}
+ private fun isa_float: Bool `{ return self->type == PP_VARTYPE_DOUBLE; `}
+ private fun isa_string: Bool `{ return self->type == PP_VARTYPE_STRING; `}
+ private fun is_undefined: Bool `{ return self->type == PP_VARTYPE_UNDEFINED; `}
- private fun as_bool: Bool `{ return recv->value.as_bool; `}
- private fun as_int: Int `{ return recv->value.as_int; `}
- private fun as_float: Float `{ return recv->value.as_double; `}
+ private fun as_bool: Bool `{ return self->value.as_bool; `}
+ private fun as_int: Int `{ return self->value.as_int; `}
+ private fun as_float: Float `{ return self->value.as_double; `}
private fun as_string: String import NativeString.to_s_with_length `{
uint32_t len;
- char* str = (char*)g_varInterface->VarToUtf8(*recv, &len);
+ char* str = (char*)g_varInterface->VarToUtf8(*self, &len);
return NativeString_to_s_with_length(str, len);
`}
end
# Converts a Int into a PepperVar with Int type.
redef fun to_pepper `{
struct PP_Var* var = malloc( sizeof( struct PP_Var ) );
- *var = PP_MakeInt32(recv);
+ *var = PP_MakeInt32(self);
return var;
`}
end
# Converts a Float into a PepperVar with Float type.
redef fun to_pepper `{
struct PP_Var* var = malloc( sizeof( struct PP_Var ) );
- *var = PP_MakeDouble(recv);
+ *var = PP_MakeDouble(self);
return var;
`}
end
# Converts a Bool into a PepperVar with Bool type.
redef fun to_pepper `{
struct PP_Var* var = malloc( sizeof( struct PP_Var ) );
- *var = PP_MakeBool(recv);
+ *var = PP_MakeBool(self);
return var;
`}
end
# Converts a String into a PepperVar with String type.
redef fun to_pepper: PepperVar import String.to_cstring, String.length `{
- char *str = String_to_cstring(recv);
+ char *str = String_to_cstring(self);
struct PP_Var* var = malloc( sizeof( struct PP_Var ) );
- *var = g_varInterface->VarFromUtf8(str, String_length(recv));
+ *var = g_varInterface->VarFromUtf8(str, String_length(self));
return var;
`}
end
# A stream for PNaCl, redefines basic input and output methods.
class PnaclStream
- super PollableIStream
- super OStream
- super BufferedIStream
+ super PollableReader
+ super Writer
+ super BufferedReader
init do prepare_buffer(10)
# fill_buffer now checks for a message in the message queue which is filled by user inputs.
redef fun fill_buffer
do
- _buffer.clear
_buffer_pos = 0
- _buffer.append check_message.to_s
+ var nns = check_message
+ var nslen = nns.cstring_length
+ _buffer_length = nslen
+ nns.copy_to(buffer, nslen, 0, 0)
end
end
# Sets everything up to work, need to be called at first.
fun initialize import PnaclApp.handle_message, PnaclApp.handle_dictionary, NativeString.to_s_with_length `{
- app = recv;
+ app = self;
`}
# Posts a message to JS.
# Checks if there is a dictionary in the queue, and if so the dictionary is handled automatically.
fun check_dictionary `{
- while(1) {
- NitHandleDictionary();
- }
+ NitHandleDictionary();
`}
+
+ # Infinite loop on check_dictionary
+ fun run
+ do
+ loop
+ check_dictionary
+ end
+ end
+end
+
+# Creates a new thread for Nit.
+#
+# This function launches the Nit main on a new thread.
+# Its purpose is to allow Nit to be still operational after an exit when needed,
+# because reloading the page may not be an option.
+#
+# Should only be used within the 'exit' before stopping the current thread
+# when the Nit execution causes a crash.
+#
+# REQUIRE: g_nit_thread and WrapperNitMain are set.
+fun create_thread `{
+ pthread_create(&g_nit_thread, NULL, &WrapperNitMain, NULL);
+`}
+
+# Calls 'pthread_exit on current thread.
+fun exit_thread(exit_value: Int) `{
+ pthread_exit((void*) exit_value);
+`}
+
+# Redef of exit in order to avoid the module to crash by terminating only the Nit thread.
+redef fun exit(exit_value: Int)
+do
+ var dictionary = new PepperDictionary
+ dictionary["exit"] = exit_value
+ app.post_dictionary dictionary
+ exit_thread exit_value
end
+
fun app: PnaclApp do return once new PnaclApp
nitlanguage / nit.git / blobdiff