/*
- * Top-level application for accessing most all apitrace
+ * Top-level application for accessing almost all of apitrace
* functionality.
*/
#define ARRAY_SIZE(arr) (sizeof (arr) / sizeof (arr[0]))
-typedef void (*command_usage_t) (const char *argv0);
-typedef int (*command_function_t) (int argc, char *argv[], int first_command_arg);
+static const char *help_synopsis = "Print detailed help for the given command.";
-typedef struct {
- const char *name;
- const char *synopsis;
- command_usage_t usage;
- command_function_t function;
-} Command;
-
-#define APITRACE_HELP_SYNOPSIS "Print detailed help for the given command."
+static void list_commands(void);
static void
-apitrace_help_usage(const char *argv0)
+help_usage()
{
- std::cout << argv0 << " [<command>]"
- "\n\n\t"
- APITRACE_HELP_SYNOPSIS
- "\n\n\t"
- "Except in this case, where this is all the help you will get."
- "\n\n";
+ std::cout
+ << "usage: apitrace help [<command>]\n"
+ << help_synopsis << "\n"
+ "\n";
+
+ list_commands();
}
static int
-apitrace_help_command(int argc, char *argv[], int first_command_arg);
-
-static Command commands[] = {
- { "dump",
- APITRACE_DUMP_SYNOPSIS,
- apitrace_dump_usage,
- apitrace_dump_command },
- { "help",
- APITRACE_HELP_SYNOPSIS,
- apitrace_help_usage,
- apitrace_help_command }
+do_help_command(int argc, char *argv[]);
+
+const Command help_command = {
+ "help",
+ help_synopsis,
+ help_usage,
+ do_help_command
+};
+
+static const Command * commands[] = {
+ &diff_command,
+ &diff_state_command,
+ &diff_images_command,
+ &dump_command,
+ &dump_images_command,
+ &pickle_command,
+ &sed_command,
+ &repack_command,
+ &retrace_command,
+ &trace_command,
+ &trim_command,
+ &help_command
+};
+
+/* Aliases provide a mechanism to allow compatibility with old command
+ * names (such as "retrace") for current commands (such as the replay
+ * command). */
+typedef struct {
+ const char *name;
+ const Command *command;
+} Alias;
+
+static const Alias aliases[] = {
+ { "retrace", &retrace_command }
};
-void
+static void
usage(void)
{
- Command *command;
+ std::cout <<
+ "Usage: apitrace <command> [<args> ...]\n"
+ "Top-level command line frontend to apitrace.\n"
+ "\n";
+
+ list_commands();
+}
+
+static void
+list_commands(void) {
+ const Command *command;
int i, max_width = 0;
- std::cout <<
- "Usage: apitrace <command> [<args> ...]\n\n"
- "The available commands are as follows:\n\n";
+ std::cout << "The available commands are as follows:\n\n";
std::cout << std::setiosflags(std::ios::left);
for (i = 0; i < ARRAY_SIZE(commands); i++) {
- command = &commands[i];
- if (strlen(command->name) > max_width)
+ command = commands[i];
+ if (strlen(command->name) > max_width) {
max_width = strlen(command->name);
+ }
}
for (i = 0; i < ARRAY_SIZE(commands); i++) {
- command = &commands[i];
+ command = commands[i];
- std::cout << " " << std::setw(max_width+2) << command->name
+ std::cout << " " << std::setw(max_width + 2) << command->name
<< " " << command->synopsis << "\n";
}
"Use \"apitrace help <command>\" for more details on each command.\n";
}
+
static int
-apitrace_help_command(int argc, char *argv[], int first_arg_command)
+do_help_command(int argc, char *argv[])
{
- Command *command;
+ const Command *command;
int i;
- if(first_arg_command == argc) {
- usage();
+ if (argc != 2) {
+ help_usage();
return 0;
}
- char *command_name = argv[first_arg_command];
+ char *command_name = argv[1];
for (i = 0; i < ARRAY_SIZE(commands); i++) {
- command = &commands[i];
+ command = commands[i];
if (strcmp(command_name, command->name) == 0) {
- std::cout << "Help for \"apitrace " << command_name << "\":\n\n";
- (command->usage) ("apitrace");
-
+ (command->usage) ();
return 0;
}
}
int
main(int argc, char **argv)
{
- const char *command_name = "trace";
- Command *command;
- int i, first_command_arg;
-
- if (argc == 1) {
- usage();
- return 1;
- }
+ const char *command_name;
+ const Command *command;
+ const Alias *alias;
+ int i;
for (i = 1; i < argc; ++i) {
const char *arg = argv[i];
}
if (strcmp(arg, "--help") == 0) {
- return apitrace_help_command (0, NULL, 0);
+ return do_help_command(0, NULL);
} else {
std::cerr << "Error: unknown option " << arg << "\n";
usage();
return 1;
}
}
- first_command_arg = i;
- if (first_command_arg < argc) {
- command_name = argv[first_command_arg];
- first_command_arg++;
+ if (i == argc) {
+ usage();
+ return 1;
}
+ command_name = argv[i];
+
+ argc -= i;
+ argv = &argv[i];
+
for (i = 0; i < ARRAY_SIZE(commands); i++) {
- command = &commands[i];
+ command = commands[i];
if (strcmp(command_name, command->name) == 0)
- return (command->function) (argc, argv, first_command_arg);
+ return (command->function) (argc, argv);
+ }
+
+ for (i = 0; i < ARRAY_SIZE(aliases); i++) {
+ alias = &aliases[i];
+
+ if (strcmp(command_name, alias->name) == 0)
+ return (alias->command->function) (argc, argv);
}
std::cerr << "Error: unknown command " << command_name
<< " (see \"apitrace help\").\n";
- return 1;
+ return 1;
}