move lttv to root
[lttv.git] / lttv / modules / text / precomputeState.c
diff --git a/lttv/modules/text/precomputeState.c b/lttv/modules/text/precomputeState.c
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+/* This file is part of the Linux Trace Toolkit viewer
+ * Copyright (C) 2003-2004 Michel Dagenais
+ *               2005 Mathieu Desnoyers
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License Version 2 as
+ * published by the Free Software Foundation;
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place - Suite 330, Boston, 
+ * MA 02111-1307, USA.
+ */
+
+/* The text dump facility needs to print headers before the trace set and
+   before each trace, to print each event, and to print statistics
+   after each trace. */
+
+#ifdef HAVE_CONFIG_H
+#include <config.h>
+#endif
+
+#include <lttv/lttv.h>
+#include <lttv/option.h>
+#include <lttv/module.h>
+#include <lttv/hook.h>
+#include <lttv/attribute.h>
+#include <lttv/iattribute.h>
+#include <lttv/stats.h>
+#include <lttv/filter.h>
+#include <lttv/print.h>
+#include <ltt/ltt.h>
+#include <ltt/event.h>
+#include <ltt/trace.h>
+#include <stdio.h>
+
+static gboolean
+  a_field_names,
+  a_state,
+  a_cpu_stats,
+  a_process_stats,
+  a_raw;
+
+static char
+  *a_file_name = NULL,
+  *a_quark_file_name = NULL;
+
+static LttvHooks
+  *before_traceset,
+  *after_traceset,
+  *before_trace,
+  *after_trace,
+  *event_hook;
+
+static guint a_event_count = 0;
+
+/* Insert the hooks before and after each trace and tracefile, and for each
+   event. Print a global header. */
+
+static FILE *a_file;
+
+static GString *a_string;
+
+static gboolean write_traceset_header(void *hook_data, void *call_data)
+{
+  LttvTracesetContext *tc = (LttvTracesetContext *)call_data;
+
+  if(a_file_name == NULL) a_file = stdout;
+  else a_file = fopen(a_file_name, "w");
+
+  if(a_file == NULL) g_error("cannot open file %s", a_file_name);
+
+  /* Print the trace set header */
+  if(a_raw) {
+  /* TODO : Write a header that will check for ILP size and endianness */
+    //fputc(HDR_TRACESET, a_file);
+    g_assert(lttv_traceset_number(tc->ts) == 1); /* Only one trace in traceset */
+  } else  {
+    fprintf(a_file,"<TRACESET NUM_TRACES=%d/>\n", 
+        lttv_traceset_number(tc->ts));
+  }
+
+  return FALSE;
+}
+
+
+static gboolean write_traceset_footer(void *hook_data, void *call_data)
+{
+  LttvTracesetContext *tc = (LttvTracesetContext *)call_data;
+  GQuark q;
+  const gchar *string;
+
+  if(a_raw) {
+
+  } else {
+    fprintf(a_file,"</TRACESET>\n");
+  }
+
+  if(a_file_name != NULL) fclose(a_file);
+
+  if(a_raw) {
+    if(a_quark_file_name == NULL) {
+      if(a_file_name == NULL) a_file = stdout;
+      else a_file = fopen(a_file_name, "a");
+    } else {
+      if(a_quark_file_name == NULL) a_file = stdout;
+      else a_file = fopen(a_quark_file_name, "w");
+    }
+
+    if(a_file == NULL) g_error("cannot open file %s", a_quark_file_name);
+
+    fputc(HDR_QUARKS, a_file);
+    q = 1;
+    do {
+      string = g_quark_to_string(q);
+      if(string == NULL) break;
+      fputc(HDR_QUARK, a_file);
+      // increment. fwrite(&q, sizeof(GQuark), 1, a_file);
+      fwrite(string, sizeof(char), strlen(string)+1, a_file);
+      q++;
+    } while(1);
+   
+    if(a_quark_file_name != NULL || a_file_name != NULL) fclose(a_file);
+
+  }
+
+  return FALSE;
+}
+
+
+static gboolean write_trace_header(void *hook_data, void *call_data)
+{
+  LttvTraceContext *tc = (LttvTraceContext *)call_data;
+
+  if(a_raw) {
+    fputc(HDR_TRACE, a_file);
+  } else {
+    fprintf(a_file,"<TRACE TRACE_NUMBER=%d/>\n", 
+        tc->index);
+  }
+  
+  return FALSE;
+}
+
+static gboolean write_trace_footer(void *hook_data, void *call_data)
+{
+  LttvTraceContext *tc = (LttvTraceContext *)call_data;
+
+  if(a_raw) {
+
+  } else {
+    fprintf(a_file,"</TRACE>\n");
+  }
+
+  return FALSE;
+}
+
+
+static int for_each_event(void *hook_data, void *call_data)
+{
+  guint *event_count = (guint*)hook_data;
+
+  LttvIAttribute *attributes = LTTV_IATTRIBUTE(lttv_global_attributes());
+  
+  LttvTracefileContext *tfc = (LttvTracefileContext *)call_data;
+
+  LttvTracefileState *tfs = (LttvTracefileState *)call_data;
+
+  LttEvent *e;
+
+  LttvAttributeValue value_filter;
+
+  /* Only save at LTTV_STATE_SAVE_INTERVAL */
+  if(likely((*event_count)++ < LTTV_STATE_SAVE_INTERVAL))
+    return FALSE;
+  else
+    *event_count = 0;
+
+  guint cpu = tfs->cpu;
+  LttvTraceState *ts = (LttvTraceState*)tfc->t_context;
+  LttvProcessState *process = ts->running_process[cpu];
+
+  e = ltt_tracefile_get_event(tfc->tf);
+
+  if(a_raw) {
+    lttv_state_write_raw(ts, tfs->parent.timestamp, a_file);
+  } else {
+    lttv_state_write(ts, tfs->parent.timestamp, a_file);
+  }
+  
+  return FALSE;
+}
+
+
+static void init()
+{
+  LttvAttributeValue value;
+
+  LttvIAttribute *attributes = LTTV_IATTRIBUTE(lttv_global_attributes());
+
+  g_info("Init precomputeState.c");
+
+  a_string = g_string_new("");
+
+  a_file_name = NULL;
+  lttv_option_add("output", 'o', 
+      "output file where the saved states are to be written", 
+      "file name", 
+      LTTV_OPT_STRING, &a_file_name, NULL, NULL);
+
+  a_quark_file_name = NULL;
+  lttv_option_add("qoutput", 'q', 
+      "output file where the quarks (tuples integer, string) are to be written", 
+      "file name", 
+      LTTV_OPT_STRING, &a_quark_file_name, NULL, NULL);
+
+  lttv_option_add("raw", 'r', 
+      "Output in raw binary",
+      "Raw binary", 
+      LTTV_OPT_NONE, &a_raw, NULL, NULL);
+
+  g_assert(lttv_iattribute_find_by_path(attributes, "hooks/event",
+      LTTV_POINTER, &value));
+  g_assert((event_hook = *(value.v_pointer)) != NULL);
+  lttv_hooks_add(event_hook, for_each_event, &a_event_count, LTTV_PRIO_DEFAULT);
+
+  g_assert(lttv_iattribute_find_by_path(attributes, "hooks/trace/before",
+      LTTV_POINTER, &value));
+  g_assert((before_trace = *(value.v_pointer)) != NULL);
+  lttv_hooks_add(before_trace, write_trace_header, NULL, LTTV_PRIO_DEFAULT);
+
+  g_assert(lttv_iattribute_find_by_path(attributes, "hooks/trace/after",
+      LTTV_POINTER, &value));
+  g_assert((after_trace = *(value.v_pointer)) != NULL);
+  lttv_hooks_add(after_trace, write_trace_footer, NULL, LTTV_PRIO_DEFAULT);
+
+  g_assert(lttv_iattribute_find_by_path(attributes, "hooks/traceset/before",
+      LTTV_POINTER, &value));
+  g_assert((before_traceset = *(value.v_pointer)) != NULL);
+  lttv_hooks_add(before_traceset, write_traceset_header, NULL,
+      LTTV_PRIO_DEFAULT);
+
+  g_assert(lttv_iattribute_find_by_path(attributes, "hooks/traceset/after",
+      LTTV_POINTER, &value));
+  g_assert((after_traceset = *(value.v_pointer)) != NULL);
+  lttv_hooks_add(after_traceset, write_traceset_footer, NULL,
+      LTTV_PRIO_DEFAULT);
+}
+
+static void destroy()
+{
+  g_info("Destroy precomputeState");
+
+  lttv_option_remove("output");
+
+  lttv_option_remove("qoutput");
+
+  lttv_option_remove("raw");
+
+  g_string_free(a_string, TRUE);
+
+  lttv_hooks_remove_data(event_hook, for_each_event, NULL);
+
+  lttv_hooks_remove_data(before_trace, write_trace_header, NULL);
+
+  lttv_hooks_remove_data(before_trace, write_traceset_header, NULL);
+
+  lttv_hooks_remove_data(before_trace, write_traceset_footer, NULL);
+}
+
+
+LTTV_MODULE("precomputeState", "Precompute states", \
+           "Precompute states in a trace, XML or binary output.", \
+           init, destroy, "stats", "batchAnalysis", "option", "print")
+
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