summaryrefslogtreecommitdiffstats
path: root/kxsldbg/kxsldbgpart/libqtnotfier/xsldbgthread.cpp
diff options
context:
space:
mode:
Diffstat (limited to 'kxsldbg/kxsldbgpart/libqtnotfier/xsldbgthread.cpp')
-rw-r--r--kxsldbg/kxsldbgpart/libqtnotfier/xsldbgthread.cpp360
1 files changed, 360 insertions, 0 deletions
diff --git a/kxsldbg/kxsldbgpart/libqtnotfier/xsldbgthread.cpp b/kxsldbg/kxsldbgpart/libqtnotfier/xsldbgthread.cpp
new file mode 100644
index 0000000..1f428bb
--- /dev/null
+++ b/kxsldbg/kxsldbgpart/libqtnotfier/xsldbgthread.cpp
@@ -0,0 +1,360 @@
+/***************************************************************************
+ xsldbgthread.cpp - description
+ -------------------
+ begin : Thu Dec 20 2001
+ copyright : (C) 2001 by keith
+ email : keith@linux
+ ***************************************************************************/
+
+/***************************************************************************
+ * *
+ * This program is free software; you can redistribute it and/or modify *
+ * it under the terms of the GNU General Public License as published by *
+ * the Free Software Foundation; either version 2 of the License, or *
+ * (at your option) any later version. *
+ * *
+ ***************************************************************************/
+
+
+#include "config.h"
+#include <pthread.h> /* need to create/work with process thread */
+#include <errno.h> /* need for EAGAIN */
+#include <stdlib.h>
+#include <string.h>
+#include <unistd.h>
+#include <stdarg.h>
+
+#include <libxml/xmlerror.h>
+
+#include "../libxsldbg/breakpoint.h"
+#include "../libxsldbg/xsldbgmsg.h"
+#include "../libxsldbg/xsldbgthread.h"
+#include "../libxsldbg/qtnotifier2.h"
+
+#ifdef HAVE_READLINE
+#include <readline/readline.h>
+#ifdef HAVE_HISTORY
+#include <readline/history.h>
+#endif
+#endif
+
+#define DEBUG_BUFFER_SIZE 500
+
+static char inputBuffer[DEBUG_BUFFER_SIZE];
+static char outputBuffer[DEBUG_BUFFER_SIZE];
+
+/*the major structure to hold information about the process thread */
+pthread_t mythread;
+
+/* The reader for stdout */
+pthread_t stdoutReaderThread;
+
+FILE *stdoutIO = NULL;
+
+
+/* -----------------------------------------------
+ private functions
+ ---------------------------------------------------*/
+
+extern "C" {
+
+/**
+ * xsldbgGenericErrorFunc:
+ * @ctx: Is Valid
+ * @msg: Is valid
+ * @...: other parameters to use
+ *
+ * Handles print output from xsldbg and passes it to the application
+ */
+void
+xsldbgGenericErrorFunc(void *ctx, const char *msg, ...);
+xmlChar * qtXslDbgShellReadline(xmlChar * prompt);
+
+}
+
+/* -----------------------------------------------
+ end functions
+ ---------------------------------------------------*/
+
+/* setup all application wide items */
+int
+xsldbgThreadInit(void)
+{
+ int result = 0;
+ fprintf(stderr, "mainInit()\n");
+ xsltSetGenericErrorFunc(0, xsldbgGenericErrorFunc);
+ setThreadStatus(XSLDBG_MSG_THREAD_INIT);
+ xsldbgSetAppFunc(qtNotifyXsldbgApp);
+ xsldbgSetAppStateFunc(qtNotifyStateXsldbgApp);
+ xsldbgSetTextFunc(qtNotifyTextXsldbgApp);
+ xsldbgSetReadlineFunc(qtXslDbgShellReadline);
+
+
+ /* create the thread */
+ if (pthread_create(&mythread, NULL, xsldbgThreadMain, NULL) != EAGAIN) {
+ int counter;
+ for (counter = 0; counter < 11; counter++){
+ if (getThreadStatus() != XSLDBG_MSG_THREAD_INIT)
+ break;
+ usleep(250000); /*guess that it will take at most 2.5 seconds to startup */
+ }
+ /* xsldbg should have started by now if it can */
+ if (getThreadStatus() == XSLDBG_MSG_THREAD_RUN){
+ fprintf(stderr, "Created thread\n");
+ result++;
+ }else
+ fprintf(stderr, "Thread did not start\n");
+ } else {
+ fprintf(stderr, "Failed to create thread\n");
+ }
+
+ return result;
+}
+
+
+/* tell the thread to stop and free that memory !*/
+void
+xsldbgThreadFree(void)
+{
+ fprintf(stderr, "xsldbgThreadFree()\n");
+ if (getThreadStatus() != XSLDBG_MSG_THREAD_DEAD)
+ {
+ int counter;
+ fprintf(stderr, "Killing xsldbg thread\n");
+ setThreadStatus(XSLDBG_MSG_THREAD_STOP);
+ for (counter = 0; counter < 11; counter++){
+ if (getThreadStatus() == XSLDBG_MSG_THREAD_DEAD)
+ break;
+ usleep(250000); /*guess that it will take at most 2.5 seconds to stop */
+ }
+ }
+
+}
+
+const char *getFakeInput()
+{
+ return inputBuffer;
+}
+
+
+/* put text into standard input just like we had typed it */
+int
+fakeInput(const char *text)
+{
+ int result = 0;
+
+ if (!text || (getInputReady() == 1) || (getThreadStatus() != XSLDBG_MSG_THREAD_RUN))
+ return result;
+
+ // fprintf(stderr, "\nFaking input of \"%s\"\n", text);
+ strncpy(inputBuffer, text, sizeof(inputBuffer));
+ setInputReady(1);
+ result++;
+ return result;
+}
+
+
+/* use this function instead of the one that was in debugXSL.c */
+/**
+ * qtXslDbgShellReadline:
+ * @prompt: the prompt value
+ *
+ * Read a string
+ *
+ * Returns a copy of the text inputed or NULL if EOF in stdin found.
+ * The caller is expected to free the returned string.
+ */
+xmlChar *
+qtXslDbgShellReadline(xmlChar * prompt)
+{
+
+ const char *inputReadBuff;
+
+ static char last_read[DEBUG_BUFFER_SIZE] = { '\0' };
+
+ if (getThreadStatus() != XSLDBG_MSG_THREAD_RUN)
+ {
+#ifdef HAVE_READLINE
+ xmlChar *line_read;
+
+ /* Get a line from the user. */
+ line_read = (xmlChar *) readline((char *) prompt);
+
+ /* If the line has any text in it, save it on the history. */
+ if (line_read && *line_read) {
+ add_history((char *) line_read);
+ strncpy((char*)last_read, (char*)line_read, DEBUG_BUFFER_SIZE - 1);
+ } else {
+ /* if only <Enter>is pressed then try last saved command line */
+ line_read = (xmlChar *) xmlMemStrdup(last_read);
+ }
+ return (line_read);
+#else
+ char line_read[DEBUG_BUFFER_SIZE];
+
+ if (prompt != NULL)
+ xsltGenericError(xsltGenericErrorContext, "%s", prompt);
+ if (!fgets(line_read, DEBUG_BUFFER_SIZE - 1, stdin))
+ return (NULL);
+ line_read[DEBUG_BUFFER_SIZE - 1] = 0;
+ /* if only <Enter>is pressed then try last saved command line */
+ if ((strlen(line_read) == 0) || (line_read[0] == '\n')) {
+ strcpy(line_read, last_read);
+ } else {
+ strcpy(last_read, line_read);
+ }
+ return (xmlChar *) xmlMemStrdup(line_read);
+#endif
+
+ }
+ else{
+
+ setInputStatus(XSLDBG_MSG_AWAITING_INPUT);
+ notifyXsldbgApp(XSLDBG_MSG_AWAITING_INPUT, NULL);
+
+ while (getInputReady() == 0){
+ usleep(10000);
+ /* have we been told to die */
+ if (getThreadStatus() == XSLDBG_MSG_THREAD_STOP){
+ fprintf(stderr, "About to stop thread\n");
+ xslDebugStatus = DEBUG_QUIT;
+ return NULL;
+ }
+ }
+
+ setInputStatus(XSLDBG_MSG_READ_INPUT);
+ inputReadBuff = getFakeInput();
+ if(inputReadBuff){
+ notifyXsldbgApp(XSLDBG_MSG_READ_INPUT, inputReadBuff);
+ return (xmlChar*)xmlMemStrdup(inputReadBuff);
+ }else{
+ return NULL;
+ }
+ }
+}
+
+
+xsldbgErrorMsg msg;
+xsldbgErrorMsgPtr msgPtr = &msg;
+xmlChar *msgText = NULL;
+
+int qtNotifyStateXsldbgApp(XsldbgMessageEnum type, int commandId,
+ XsldbgCommandStateEnum commandState, const char *text)
+{
+ int result = 0;
+ msg.type = type;
+ msg.commandId = commandId;
+ msg.commandState = commandState;
+ if (text != NULL)
+ {
+ msg.text = (xmlChar*)xmlMemStrdup(text);
+ if (msg.text == NULL)
+ return result; /* out of memory */
+ }
+ else
+ msg.text = NULL;
+
+ notifyXsldbgApp(XSLDBG_MSG_PROCESSING_RESULT, msgPtr);
+ if (msg.text != NULL)
+ {
+ xmlFree(msg.text);
+ msg.text = NULL;
+ }
+
+ result = 1;
+ return result;
+}
+
+
+int qtNotifyTextXsldbgApp(XsldbgMessageEnum type, const char *text)
+{
+ return qtNotifyStateXsldbgApp(type, -1, XSLDBG_COMMAND_NOTUSED, text);
+}
+
+char mainBuffer[DEBUG_BUFFER_SIZE];
+static void xsldbgThreadCleanupQt(void);
+
+
+/* this is where the thread get to do all its work */
+void *
+xsldbgThreadMain(void *)
+{
+ // int defaultArgc = 2;
+ // char *defaultArgv[2];
+ // int i;
+
+ if (getThreadStatus() != XSLDBG_MSG_THREAD_INIT){
+ fprintf(stderr, "xsldbg thread is not ready to be started. Or one is already running.\n");
+ return NULL; /* we can't start more than one thread of xsldbg */
+ }
+
+// defaultArgv[0] = xmlMemStrdup("xsldbg");
+// defaultArgv[1] = xmlMemStrdup("--shell");
+ /*
+ defaultArgv[2] = xmlMemStrdup("xsldoc.xsl");
+ defaultArgv[3] = xmlMemStrdup("xsldoc.xml");
+ */
+/* for (i = 0; i < defaultArgc; i++){
+ if (defaultArgv[i] == NULL){
+ fprintf(stderr, "Start thread failed. Unable to create xsldbg arguments\n");
+ return NULL;
+ }
+ }
+*/
+ xsldbgSetThreadCleanupFunc(xsldbgThreadCleanupQt);
+ setThreadStatus(XSLDBG_MSG_THREAD_RUN);
+ setInputStatus(XSLDBG_MSG_AWAITING_INPUT);
+ fprintf(stderr, "Starting thread\n");
+
+ /* call the "main of xsldbg" found in debugXSL.c */
+// xsldbgMain(defaultArgc, defaultArgv);
+ xsldbgMain(0,0);
+ fprintf(stderr, "Stopping thread\n");
+/*
+ for (i = 0; i < defaultArgc; i++){
+ xmlFree(defaultArgv[i]);
+ }
+*/
+
+ setThreadStatus(XSLDBG_MSG_THREAD_DEAD);
+ setInputStatus(XSLDBG_MSG_PROCESSING_INPUT);
+ notifyXsldbgApp(XSLDBG_MSG_THREAD_DEAD, NULL);
+ return NULL;
+}
+
+
+
+/* thread has died so cleanup after it not called directly but via
+ notifyXsldbgApp*/
+void
+xsldbgThreadCleanupQt(void)
+{
+ fprintf(stderr, "Thread has finished\n");
+ if (getThreadStatus() == XSLDBG_MSG_THREAD_RUN)
+ {
+ xsldbgThreadFree();
+ }
+ /* its safe to modify threadStatus as the thread is now dead */
+ setThreadStatus(XSLDBG_MSG_THREAD_DEAD);
+}
+
+
+
+void *
+xsldbgThreadStdoutReader(void *data)
+{
+ if (!stdoutIO)
+ return data;
+
+ while (getThreadStatus() == XSLDBG_MSG_THREAD_RUN){
+ if (fgets(outputBuffer, sizeof(outputBuffer -1), stdoutIO)){
+ usleep(10000);
+ strcat(outputBuffer, "\n");
+ notifyTextXsldbgApp(XSLDBG_MSG_TEXTOUT, outputBuffer);
+ }else{
+ fprintf(stderr, "Unable to read from stdout from xsldbg\n");
+ break;
+ }
+ }
+ return data;
+}