From: Josuer08 <josuer08@gmail.com>
Date: Sun, 14 Feb 2021 02:10:50 +0000 (-0500)
Subject: first
X-Git-Url: https://git.josue.xyz/?a=commitdiff_plain;h=980f692e6fcbc83fb41f831f1143b1e6ecf412c6;p=tinysh-parallel%2F.git

first
---

980f692e6fcbc83fb41f831f1143b1e6ecf412c6
diff --git a/README.md b/README.md
new file mode 100644
index 0000000..8d4d195
--- /dev/null
+++ b/README.md
@@ -0,0 +1 @@
+# tinysh-parallel
diff --git a/khe b/khe
new file mode 100755
index 0000000..7a6346d
--- /dev/null
+++ b/khe
@@ -0,0 +1,10 @@
+#!/bin/bash
+# Basic while loop
+counter=1
+while [ $counter -le 10 ]
+do
+echo $counter
+((counter++))
+sleep 1
+done
+echo All done
diff --git a/test b/test
new file mode 100644
index 0000000..97df509
--- /dev/null
+++ b/test
@@ -0,0 +1 @@
+./khe;./khe
diff --git a/tinysh b/tinysh
new file mode 100755
index 0000000..9f97bcd
Binary files /dev/null and b/tinysh differ
diff --git a/tinysh.c b/tinysh.c
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index 0000000..29c6a01
--- /dev/null
+++ b/tinysh.c
@@ -0,0 +1,210 @@
+#include <stdio.h>
+#include <stdbool.h>
+#include <unistd.h>
+#include <sys/types.h>
+#include <sys/wait.h>
+#include <stdlib.h>
+#include <string.h>
+
+
+int COMMANDS_SIZE;
+char **parse_command(char *my_line, char value)
+{
+    int buffer_size = 64;
+    int i = 0;
+    char *arg;
+    char **args = malloc(buffer_size * sizeof(char*));
+    char *valuee = &value;
+    arg = strtok(my_line, valuee);
+    while (arg != NULL) {
+        args[i] = arg;
+        i++;
+        arg = strtok(NULL, valuee);
+    }
+
+    args[i] = NULL;
+    COMMANDS_SIZE = i;
+    return args;
+}
+void trimTrailing(char * str)
+{
+    int index, i;
+
+    /* Set default index */
+    index = -1;
+
+    /* Find last index of non-white space character */
+    i = 0;
+    while(str[i] != '\0')
+    {
+        if(str[i] != ' ' && str[i] != '\t' && str[i] != '\n')
+        {
+            index= i;
+        }
+
+        i++;
+    }
+
+    /* Mark next character to last non-white space character as NULL */
+    str[index + 1] = '\0';
+}
+////////////////////EXEC PROGRAM FUNCTION/////////////
+//
+//
+//
+static int exec_prog(int argc, const char **argv) {
+
+  pid_t pid[argc];
+  int status, timeout /* unused ifdef WAIT_FOR_COMPLETION */;
+
+  // this block executes when pid=0, (I am the father process)
+
+  for (int i =0; i < argc; i++) {
+
+    if ((pid[i] = fork()) < 0) {  /* fork a child process           */
+      printf("*** ERROR: forking child process failed\n");
+      exit(1);
+     } else if (pid[i] == 0) {  /* for the child process:         */
+       trimTrailing(argv[i]);
+       char **value = parse_command(argv[i], ' ');
+       if (strcmp(value[0], "")) {
+        if (execvp(value[0], value) < 0) {  /* execute the command  */
+                 printf("*** ERROR: exec failed\n");
+                 exit(1);
+            }
+        exit(0);
+       } else {
+        printf("");
+        exit(0);
+       }
+     }
+
+  }
+
+  for (int i =0; i < argc; i++) {
+    do {
+      if ((pid[i] = waitpid(pid[i], &status, WNOHANG)) == -1) {
+        perror("wait() error");
+      }
+      else if (pid[i] == 0) {
+        /*printf("child is still running ");*/
+        sleep(1);
+      } else {
+        if (WIFEXITED(status))
+        printf("child exited with status of %d\n", WEXITSTATUS(status));
+        /*else puts("child did not exit successfully");*/
+      }
+    } while (pid[i] == 0);
+
+  }
+
+    return 0;
+}
+//
+//
+//
+//////////////////////////////////////////////////////
+
+////////////////////BATCH MODE PROCESS////////////////
+//
+//
+//
+int batchModeStart(const char **argv) {
+
+
+
+}
+//
+//
+//
+//////////////////////////////////////////////////////
+
+void promptPrint(){
+printf("⌈[tinysh] \n↳>>> ");
+}
+
+
+char *read_command_line(void)
+{
+    int bufsize = 1024;
+    char *buffer = malloc(sizeof(char) * bufsize);
+    int c;
+    int i = 0;
+
+    while ( c != '\n' ) {
+        c = getchar();
+        buffer[i] = c;
+        i++;
+    }
+
+    return buffer;
+}
+
+
+int main (int argc, char *argv[]){
+
+  char *prompt = argv[0];
+  char *filename;
+  bool batchMode = false;
+  if ( argc == 2) {
+    filename = argv[1];
+    batchMode = true;
+  } else if (argc != 1) {
+    printf("Wrong ammount of arguments, only one file per batch \n");
+  }
+
+  /*promptPrint();*/
+  /*exec_prog(1, filename);*/
+  /*exec_prog(&argv[1]);*/
+
+
+
+//Oscar J Rodriguez B (@josuer08)
+  if (!batchMode) {
+    bool active = true;
+    char *arguments;
+    while (active) {
+      promptPrint();
+      arguments = read_command_line();
+      char **args = parse_command(arguments, ';');
+      trimTrailing(args[0]);
+      if (strcmp(args[0], "exit") == 0) {/* is it an "exit"?     */
+        active = false;  /*   exit if it is                */
+      } else {
+        exec_prog(COMMANDS_SIZE,args);
+      }
+      /*printf("%d", COMMANDS_SIZE);*/
+      /*printf("%s and %s", args[0], args[1]);*/
+    }
+  } else {
+    char * buffer = 0;
+    long length;
+    FILE * f = fopen (filename, "rb");
+
+    if (f) {
+      fseek (f, 0, SEEK_END);
+      length = ftell (f);
+      fseek (f, 0, SEEK_SET);
+      buffer = malloc (length);
+      if (buffer) {
+        fread (buffer, 1, length, f);
+      }
+      fclose (f);
+    }
+
+    if (buffer) {
+    char **args = parse_command(buffer, ';');
+    trimTrailing(args[0]);
+    /*printf("%s", buffer);*/
+    exec_prog(COMMANDS_SIZE,args);
+    }
+
+
+    return 0;
+
+  }
+
+
+
+
+}