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[parseopt] Add parse_timeout()
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Parsing a timeout value (specified in milliseconds) into an internal
timeout value measured in timer ticks is a common operation.  Provide
a parse_timeout() value to carry out this conversion automatically.

Signed-off-by: Michael Brown <mcb30@ipxe.org>
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mcb30 committed Nov 1, 2013
1 parent b15dbc9 commit 5e1fa5c
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Showing 12 changed files with 46 additions and 27 deletions.
22 changes: 22 additions & 0 deletions src/core/parseopt.c
Expand Up @@ -30,6 +30,7 @@ FILE_LICENCE ( GPL2_OR_LATER );
#include <ipxe/menu.h>
#include <ipxe/settings.h>
#include <ipxe/params.h>
#include <ipxe/timer.h>
#include <ipxe/parseopt.h>

/** @file
Expand Down Expand Up @@ -95,6 +96,27 @@ int parse_integer ( char *text, unsigned int *value ) {
return 0;
}

/**
* Parse timeout value (in ms)
*
* @v text Text
* @ret value Integer value
* @ret rc Return status code
*/
int parse_timeout ( char *text, unsigned long *value ) {
unsigned int value_ms;
int rc;

/* Parse raw integer value */
if ( ( rc = parse_integer ( text, &value_ms ) ) != 0 )
return rc;

/* Convert to a number of timer ticks */
*value = ( ( value_ms * TICKS_PER_SEC ) / 1000 );

return 0;
}

/**
* Parse network device name
*
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4 changes: 2 additions & 2 deletions src/hci/commands/menu_cmd.c
Expand Up @@ -194,7 +194,7 @@ struct choose_options {
/** Menu name */
char *menu;
/** Timeout */
unsigned int timeout;
unsigned long timeout;
/** Default selection */
char *select;
/** Keep menu */
Expand All @@ -208,7 +208,7 @@ static struct option_descriptor choose_opts[] = {
OPTION_DESC ( "default", 'd', required_argument,
struct choose_options, select, parse_string ),
OPTION_DESC ( "timeout", 't', required_argument,
struct choose_options, timeout, parse_integer ),
struct choose_options, timeout, parse_timeout ),
OPTION_DESC ( "keep", 'k', no_argument,
struct choose_options, keep, parse_flag ),
};
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7 changes: 4 additions & 3 deletions src/hci/commands/ping_cmd.c
Expand Up @@ -27,6 +27,7 @@ FILE_LICENCE ( GPL2_OR_LATER );
#include <getopt.h>
#include <ipxe/command.h>
#include <ipxe/parseopt.h>
#include <ipxe/timer.h>
#include <usr/pingmgmt.h>

/** @file
Expand All @@ -39,22 +40,22 @@ FILE_LICENCE ( GPL2_OR_LATER );
#define PING_DEFAULT_SIZE 64

/** Default timeout */
#define PING_DEFAULT_TIMEOUT 1000
#define PING_DEFAULT_TIMEOUT TICKS_PER_SEC

/** "ping" options */
struct ping_options {
/** Payload length */
unsigned int size;
/** Timeout (in ms) */
unsigned int timeout;
unsigned long timeout;
};

/** "ping" option list */
static struct option_descriptor ping_opts[] = {
OPTION_DESC ( "size", 's', required_argument,
struct ping_options, size, parse_integer ),
OPTION_DESC ( "timeout", 't', required_argument,
struct ping_options, timeout, parse_integer ),
struct ping_options, timeout, parse_timeout ),
};

/** "ping" command descriptor */
Expand Down
9 changes: 3 additions & 6 deletions src/hci/commands/sync_cmd.c
Expand Up @@ -24,7 +24,6 @@ FILE_LICENCE ( GPL2_OR_LATER );
#include <getopt.h>
#include <ipxe/command.h>
#include <ipxe/parseopt.h>
#include <ipxe/timer.h>
#include <ipxe/pending.h>

/** @file
Expand All @@ -36,13 +35,13 @@ FILE_LICENCE ( GPL2_OR_LATER );
/** "sync" options */
struct sync_options {
/** Timeout */
unsigned int timeout;
unsigned long timeout;
};

/** "sync" option list */
static struct option_descriptor sync_opts[] = {
OPTION_DESC ( "timeout", 't', required_argument,
struct sync_options, timeout, parse_integer ),
struct sync_options, timeout, parse_timeout ),
};

/** "sync" command descriptor */
Expand All @@ -59,16 +58,14 @@ static struct command_descriptor sync_cmd =
*/
static int sync_exec ( int argc, char **argv ) {
struct sync_options opts;
unsigned long timeout;
int rc;

/* Parse options */
if ( ( rc = parse_options ( argc, argv, &sync_cmd, &opts ) ) != 0 )
return rc;

/* Wait for pending operations to complete */
timeout = ( ( opts.timeout * TICKS_PER_SEC ) / 1000 );
if ( ( rc = pending_wait ( timeout ) ) != 0 ) {
if ( ( rc = pending_wait ( opts.timeout ) ) != 0 ) {
printf ( "Operations did not complete: %s\n", strerror ( rc ) );
return rc;
}
Expand Down
6 changes: 3 additions & 3 deletions src/hci/tui/menu_ui.c
Expand Up @@ -303,11 +303,11 @@ static int menu_loop ( struct menu_ui *ui, struct menu_item **selected ) {
* Show menu
*
* @v menu Menu
* @v wait_ms Time to wait, in milliseconds (0=indefinite)
* @v timeout Timeout period, in ticks (0=indefinite)
* @ret selected Selected item
* @ret rc Return status code
*/
int show_menu ( struct menu *menu, unsigned int timeout_ms,
int show_menu ( struct menu *menu, unsigned long timeout,
const char *select, struct menu_item **selected ) {
struct menu_item *item;
struct menu_ui ui;
Expand All @@ -318,7 +318,7 @@ int show_menu ( struct menu *menu, unsigned int timeout_ms,
/* Initialise UI */
memset ( &ui, 0, sizeof ( ui ) );
ui.menu = menu;
ui.timeout = ( ( timeout_ms * TICKS_PER_SEC ) / 1000 );
ui.timeout = timeout;
list_for_each_entry ( item, &menu->items, list ) {
if ( item->label ) {
if ( ! labelled_count )
Expand Down
4 changes: 2 additions & 2 deletions src/image/script.c
Expand Up @@ -361,15 +361,15 @@ struct prompt_options {
/** Key to wait for */
unsigned int key;
/** Timeout */
unsigned int timeout;
unsigned long timeout;
};

/** "prompt" option list */
static struct option_descriptor prompt_opts[] = {
OPTION_DESC ( "key", 'k', required_argument,
struct prompt_options, key, parse_key ),
OPTION_DESC ( "timeout", 't', required_argument,
struct prompt_options, timeout, parse_integer ),
struct prompt_options, timeout, parse_timeout ),
};

/** "prompt" command descriptor */
Expand Down
2 changes: 1 addition & 1 deletion src/include/ipxe/menu.h
Expand Up @@ -43,7 +43,7 @@ extern struct menu_item * add_menu_item ( struct menu *menu, const char *label,
int is_default );
extern void destroy_menu ( struct menu *menu );
extern struct menu * find_menu ( const char *name );
extern int show_menu ( struct menu *menu, unsigned int timeout_ms,
extern int show_menu ( struct menu *menu, unsigned long timeout,
const char *select, struct menu_item **selected );

#endif /* _IPXE_MENU_H */
1 change: 1 addition & 0 deletions src/include/ipxe/parseopt.h
Expand Up @@ -126,6 +126,7 @@ struct named_setting {

extern int parse_string ( char *text, char **value );
extern int parse_integer ( char *text, unsigned int *value );
extern int parse_timeout ( char *text, unsigned long *value );
extern int parse_netdev ( char *text, struct net_device **netdev );
extern int parse_menu ( char *text, struct menu **menu );
extern int parse_flag ( char *text __unused, int *flag );
Expand Down
2 changes: 1 addition & 1 deletion src/include/usr/pingmgmt.h
Expand Up @@ -11,6 +11,6 @@ FILE_LICENCE ( GPL2_OR_LATER );

#include <stdint.h>

extern int ping ( const char *hostname, unsigned long timeout_ms, size_t len );
extern int ping ( const char *hostname, unsigned long timeout, size_t len );

#endif /* _USR_PINGMGMT_H */
2 changes: 1 addition & 1 deletion src/include/usr/prompt.h
Expand Up @@ -9,6 +9,6 @@

FILE_LICENCE ( GPL2_OR_LATER );

extern int prompt ( const char *text, unsigned int wait_ms, int key );
extern int prompt ( const char *text, unsigned long timeout, int key );

#endif /* _USR_PROMPT_H */
7 changes: 3 additions & 4 deletions src/usr/pingmgmt.c
Expand Up @@ -56,16 +56,15 @@ static void ping_callback ( struct sockaddr *peer, unsigned int sequence,
* Ping a host
*
* @v hostname Hostname
* @v timeout_ms Timeout between pings, in ms
* @v timeout Timeout between pings, in ticks
* @v len Payload length
* @ret rc Return status code
*/
int ping ( const char *hostname, unsigned long timeout_ms, size_t len ) {
int ping ( const char *hostname, unsigned long timeout, size_t len ) {
int rc;

/* Create pinger */
if ( ( rc = create_pinger ( &monojob, hostname,
( ( timeout_ms * TICKS_PER_SEC ) / 1000 ),
if ( ( rc = create_pinger ( &monojob, hostname, timeout,
len, ping_callback ) ) != 0 ) {
printf ( "Could not start ping: %s\n", strerror ( rc ) );
return rc;
Expand Down
7 changes: 3 additions & 4 deletions src/usr/prompt.c
Expand Up @@ -28,28 +28,27 @@ FILE_LICENCE ( GPL2_OR_LATER );
#include <errno.h>
#include <stdio.h>
#include <ipxe/console.h>
#include <ipxe/timer.h>
#include <usr/prompt.h>

/**
* Prompt for keypress
*
* @v text Prompt string
* @v wait_ms Time to wait, in milliseconds (0=indefinite)
* @v timeout Timeout period, in ticks (0=indefinite)
* @v key Key to wait for (0=any key)
* @ret rc Return status code
*
* Returns success if the specified key was pressed within the
* specified timeout period.
*/
int prompt ( const char *text, unsigned int wait_ms, int key ) {
int prompt ( const char *text, unsigned long timeout, int key ) {
int key_pressed;

/* Display prompt */
printf ( "%s", text );

/* Wait for key */
key_pressed = getkey ( ( wait_ms * TICKS_PER_SEC ) / 1000 );
key_pressed = getkey ( timeout );

/* Clear the prompt line */
while ( *(text++) )
Expand Down

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