src/command.c

   1 /*
   2  * Copyright 1993, 1995 Christopher Seiwald.
   3  *
   4  * This file is part of Jam - see jam.c for Copyright information.
   5  */
   6 /*
   7  * command.c - maintain lists of commands
   8  *
   9  * 01/20/00 (seiwald) - Upgraded from K&R to ANSI C
  10  * 09/08/00 (seiwald) - bulletproof PIECEMEAL size computation
  11  */
  12
  13 #include "jam.h"
  14
  15 #include "lists.h"
  16 #include "parse.h"
  17 #include "variable.h"
  18 #include "rules.h"
  19
  20 #include "command.h"
  21
  22
  23 /*
  24  * cmd_new() - return a new CMD or 0 if too many args
  25  */
  26 CMD *cmd_new (RULE *rule, LIST *targets, LIST *sources, LIST *shell, int maxline) {
  27   CMD *cmd = (CMD *)malloc(sizeof(CMD));
  28   //
  29   cmd->rule = rule;
  30   cmd->shell = shell;
  31   cmd->next = 0;
  32   lol_init(&cmd->args);
  33   lol_add(&cmd->args, targets);
  34   lol_add(&cmd->args, sources);
  35   /* bail if the result won't fit in maxline */
  36   /* we don't free targets/sources/shell if bailing */
  37   if (var_string(rule->actions, cmd->buf, maxline, &cmd->args) < 0) { cmd_free(cmd); return 0; }
  38   return cmd;
  39 }
  40
  41
  42 /*
  43  * cmd_free() - free a CMD
  44  */
  45 void cmd_free (CMD *cmd) {
  46   lol_free(&cmd->args);
  47   list_free(cmd->shell);
  48   free((char *)cmd);
  49 }