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1 /*
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2 * File: first.cpp
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3 * Author: sara
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4 *
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5 * Created on December 30, 2013, 11:41 AM
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6 */
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7
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8 #include <cstdlib>
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9 /* Include the JSAPI header file to get access to SpiderMonkey. */
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10 #include "jsapi.h"
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11 #include <pthread.h>
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12
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13 using namespace std;
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14 struct thread_parameter
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15 {
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16 // char *uncompiledScript;
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17 // JSObject *sharedGlobalObject;
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18 // JSRuntime *currRt;
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19 char *tempstr;
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20
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21
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22 };
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23 /* The class of the global object. */
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24 JSRuntime *rt;
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25 JSObject *global;
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26 static JSClass global_class = {
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27 "global", JSCLASS_GLOBAL_FLAGS,
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28 JS_PropertyStub, JS_PropertyStub, JS_PropertyStub, JS_StrictPropertyStub,
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29 JS_EnumerateStub, JS_ResolveStub, JS_ConvertStub, JS_FinalizeStub,
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30 JSCLASS_NO_OPTIONAL_MEMBERS
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31 };
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32
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33 /* The error reporter callback. */
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34 void reportError(JSContext *cx, const char *message, JSErrorReport *report)
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35 {
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36 fprintf(stderr, "%s:%u:%s\n",
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37 report->filename ? report->filename : "<no filename=\"filename\">",
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38 (unsigned int) report->lineno,
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39 message);
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40 }
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41 /** the function which the thread executes when is created at main
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42 *@parameter structure of all the argument the function needs
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43 *@return return null at the end
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44 */
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45 void *threadFunction(void* arg){
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46 /* indicates that the execution of the script is executed successfully or not*/
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47 bool execute;
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48 int temp = 1;
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49 // char *script = "'Hi' + 'Sara'";
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50 char threadScript[] = "'Hi ' + 'Sara!'";
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51 char *scr = threadScript;
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52 JSString *outStr;
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53 /* carries the value of the last expression of the script*/
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54 jsval rval1;
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55
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56 /* The new context which is created by the thread*/
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57 JSContext *currContext;
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58 /* pass the incoming argument of the function */
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59 // struct thread_parameter *arg1 = (struct thread_parameter *) arg;
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60 //const char *uncScript = (const char*)arg->uncompiledScript;
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61 //scr = (char *)arg;
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62 /*Creates new context to be attached to the creator thread*/
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63 currContext = JS_NewContext(rt, 8192);
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64 if (currContext == NULL)
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65 return NULL;
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66 /* In a thread safe build every entry to the api that uses
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67 context must be in a request for thread safety*/
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68 JS_BeginRequest(currContext);
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69 JS_SetOptions(currContext, JSOPTION_VAROBJFIX | JSOPTION_JIT | JSOPTION_METHODJIT);
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70 JS_SetVersion(currContext, JSVERSION_LATEST);
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71 /*Compiles the incoming script*/
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72 JSObject *compiledScript = JS_CompileScript(currContext, global, scr,strlen(scr), "threadFilename", 0);
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73 /*Executes the compiled script*/
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74 execute = JS_ExecuteScript(currContext, global, compiledScript, &rval1);
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75 if ( rval1 == JS_FALSE)//rval == JS_NULL |
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76 return NULL;
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77 /*gets the returned value of the last expression of the executed script*/
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78 outStr = JS_ValueToString(currContext, rval1);
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79 printf("%s\n", JS_EncodeString(currContext, outStr));
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80 /*Ends the request */
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81 JS_EndRequest(currContext);
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82 /*Destroy the context of that thread*/
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83 JS_DestroyContext(currContext);
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84 //printf("HI, Sara");
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85 return NULL;
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86
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87 }
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88 /*
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89 *
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90 */
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91 int main(int argc, const char *argv[]) {
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92
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93 /* JSAPI variables. */
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94 //JSRuntime *rt;
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95 JSContext *cx;
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96 // JSObject *global;
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97 /* id of the created thread*/
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98 pthread_t thread_id;
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99
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100 /* Create a JS runtime. You always need at least one runtime per process. */
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101 rt = JS_NewRuntime(8 * 1024 * 1024);
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102 if (rt == NULL)
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103 return 1;
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104
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105 /*
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106 * Create a context. You always need a context per thread.
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107 * Note that this program is not multi-threaded.
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108 This thread is used by the main thread only
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109 */
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110 cx = JS_NewContext(rt, 8192);
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111 if (cx == NULL)
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112 return 1;
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113 JS_BeginRequest(cx);
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114 JS_SetOptions(cx, JSOPTION_VAROBJFIX | JSOPTION_JIT | JSOPTION_METHODJIT);
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115 JS_SetVersion(cx, JSVERSION_LATEST);
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116 JS_SetErrorReporter(cx, reportError);
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117
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118 /*
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119 * Create the global object in a new compartment.
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120 * You always need a global object per context.
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121 */
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122
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123 global = JS_NewCompartmentAndGlobalObject(cx, &global_class, NULL);
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124 if (global == NULL)
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125 return 1;
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126
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127 /*
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128 * Populate the global object with the standard JavaScript
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129 * function and object classes, such as Object, Array, Date.
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130 */
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131 if (!JS_InitStandardClasses(cx, global))
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132 return 1;
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133
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134 /* Your application code here. This may include JSAPI calls
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135 * to create your own custom JavaScript objects and to run scripts.
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136 *
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137 * The following example code creates a literal JavaScript script,
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138 * evaluates it, and prints the result to stdout.
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139 *
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140 * Errors are conventionally saved in a JSBool variable named ok.
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141 */
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142
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143
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144 /** Create the thread here....*/
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145 struct thread_parameter threadArg;
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146 //threadArg.sharedGlobalObject = global;
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147 char threadScript[] = "'Hi ' + 'Sara!'";
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148 //threadArg.tempstr = threadScript;
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149 //threadArg.currRt = rt;
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150
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151 pthread_create(&thread_id, NULL, &threadFunction,NULL);
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152 /*****************************************************************/
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153 const char *script = "'Hello ' + 'World!'";
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154 jsval rval;
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155 JSString *str;
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156 JSBool ok;
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157 const char *filename = "noname";
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158 uintN lineno = 0;
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159 ok = JS_EvaluateScript(cx, global, script, strlen(script),
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160 filename, lineno, &rval);
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161 if ( rval == JS_FALSE)//rval == JS_NULL |
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162 return 1;
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163 str = JS_ValueToString(cx, rval);
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164 printf("%s\n", JS_EncodeString(cx, str));
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165
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166 /* End of your application code */
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167
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168 /* Clean things up and shut down SpiderMonkey. */
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169 JS_EndRequest(cx);
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170 JS_DestroyContext(cx);
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171 JS_DestroyRuntime(rt);
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172 JS_ShutDown();
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173
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174 return 0;
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175 }
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176
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