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/**
* @file command.c
* @author Joe Wingbermuehle
* @date 2004-2006
*
* @brief Handle running startup, shutdown, and restart commands.
*
*/
#include "jwm.h"
#include "command.h"
#include "root.h"
#include "misc.h"
#include "main.h"
/** Structure to represent a list of commands. */
typedef struct CommandNode {
char *command; /**< The command. */
struct CommandNode *next; /**< The next command in the list. */
} CommandNode;
static CommandNode *startupCommands;
static CommandNode *shutdownCommands;
static CommandNode *restartCommands;
static void RunCommands(CommandNode *commands);
static void ReleaseCommands(CommandNode **commands);
static void AddCommand(CommandNode **commands, const char *command);
/** Initialize the command lists. */
void
InitializeCommands()
{
startupCommands = NULL;
shutdownCommands = NULL;
restartCommands = NULL;
}
/** Process startup/restart commands. */
void
StartupCommands()
{
if(isRestarting) {
RunCommands(restartCommands);
} else {
RunCommands(startupCommands);
}
}
/** Process shutdown commands. */
void
ShutdownCommands()
{
if(!shouldRestart) {
RunCommands(shutdownCommands);
}
}
/** Destroy the command lists. */
void
DestroyCommands()
{
ReleaseCommands(&startupCommands);
ReleaseCommands(&shutdownCommands);
ReleaseCommands(&restartCommands);
}
/** Run the commands in a command list. */
void
RunCommands(CommandNode *commands)
{
CommandNode *cp;
for(cp = commands; cp; cp = cp->next) {
RunCommand(cp->command);
}
}
/** Release a command list. */
void
ReleaseCommands(CommandNode **commands)
{
CommandNode *cp;
Assert(commands);
while(*commands) {
cp = (*commands)->next;
Release((*commands)->command);
Release(*commands);
*commands = cp;
}
}
/** Add a command to a command list. */
void
AddCommand(CommandNode **commands, const char *command)
{
CommandNode *cp;
Assert(commands);
if(!command) {
return;
}
cp = Allocate(sizeof(CommandNode));
cp->next = *commands;
*commands = cp;
cp->command = CopyString(command);
}
/** Add a startup command. */
void
AddStartupCommand(const char *command)
{
AddCommand(&startupCommands, command);
}
/** Add a shutdown command. */
void
AddShutdownCommand(const char *command)
{
AddCommand(&shutdownCommands, command);
}
/** Add a restart command. */
void
AddRestartCommand(const char *command)
{
AddCommand(&restartCommands, command);
}
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