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 #include "kstrings.h"
  20
  21 #include "command.h"
  22
  23
  24 /*
  25  * cmd_new() - return a new CMD or 0 if too many args
  26  */
  27 CMD *cmd_new (RULE *rule, LIST *targets, LIST *sources, LIST *shell, int maxline) {
  28   CMD *cmd = (CMD *)malloc(sizeof(CMD));
  29   //
  30   kStringNew(&cmd->buf);
  31   cmd->rule = rule;
  32   cmd->shell = shell;
  33   cmd->next = 0;
  34   lol_init(&cmd->args);
  35   lol_add(&cmd->args, targets);
  36   lol_add(&cmd->args, sources);
  37   /* bail if the result won't fit in maxline */
  38   /* we don't free targets/sources/shell if bailing */
  39   if (var_string(rule->actions, &cmd->buf, &cmd->args, ' ') < 0) { cmd_free(cmd); return 0; }
  40   return cmd;
  41 }
  42
  43
  44 /*
  45  * cmd_free() - free a CMD
  46  */
  47 void cmd_free (CMD *cmd) {
  48   kStringFree(&cmd->buf);
  49   lol_free(&cmd->args);
  50   list_free(cmd->shell);
  51   free(cmd);
  52 }