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Fix up key_reader

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* Correct notice about ^C
* Move time deltas to end of the line away from the important info on
  left.
* Use timef() instead of gettimteofday() ourselves
* Show time in ms (is this even useful in any unit? Maybe testing escape
  delays...)
* Make init more similar to other apps.
This commit is contained in:
Aaron Gyes 2016-06-23 07:43:55 -07:00
parent db2c128b24
commit 290e936322
1 changed files with 38 additions and 32 deletions
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70
src/fish_key_reader.cpp
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@ -9,15 +9,14 @@
#include "config.h" // IWYU pragma: keep
#include <getopt.h>
#include <locale.h>
#include <signal.h>
#include <stdbool.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <sys/time.h>
#include <wctype.h>
#include <string>
#include <limits>
#include <cmath>
#include "common.h"
#include "env.h"
@ -29,11 +28,12 @@
struct config_paths_t determine_config_directory_paths(const char *argv0);
static long long int prev_tstamp = 0;
static const char *ctrl_equivalents[] = {NULL, NULL, NULL, NULL, NULL, NULL, NULL, "\\a",
"\\b", "\\t", "\\n", "\\v", "\\f", "\\r", NULL, NULL,
NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
NULL, NULL, NULL, "\\e", NULL, NULL, NULL, NULL};
long double prev_tstamp = std::numeric_limits<long double>::quiet_NaN();
static const char *ctrl_equivalents[] = {"\\000", "\\001", "\\002", "\\003", "\\004", "\\005", "\\006", "\\a",
"\\b", "\\t", "\\n", "\\v", "\\f", "\\r", "\\014", "\\015",
"\\016", "\\017", "\\018", "\\019", "\\020", "\\021", "\\022", "\\023",
"\\024", "\\025", "", "\\e", "\\028", "\\029", "\\030", "\\031"};
/// Return true if the recent sequence of characters indicates the user wants to exit the program.
bool should_exit(unsigned char c) {
@ -78,53 +78,56 @@ void process_input(bool continuous_mode) {
wchar_t wc = input_common_readch(first_char_seen && !continuous_mode);
if (wc == WEOF) {
return;
}
if (wc > 255) {
} else if (wc > 255) {
printf("\nUnexpected wide character from input_common_readch(): %lld / 0x%llx\n",
(long long)wc, (long long)wc);
return;
}
long long int curr_tstamp, delta_tstamp;
timeval char_tstamp;
gettimeofday(&char_tstamp, NULL);
curr_tstamp = char_tstamp.tv_sec * 1000000 + char_tstamp.tv_usec;
delta_tstamp = curr_tstamp - prev_tstamp;
if (delta_tstamp >= 1000000) delta_tstamp = 999999;
if (delta_tstamp >= 200000 && continuous_mode) {
long double delta_tstamp = (timef() - prev_tstamp) * 100;
prev_tstamp = timef();
if (delta_tstamp > 20000) {
printf("\n");
printf("Type 'exit' or 'quit' to terminate this program.\n");
printf("\n");
}
prev_tstamp = curr_tstamp;
unsigned char c = wc;
if (c < 32) {
// Control characters.
if (ctrl_equivalents[c]) {
printf("%6lld usec dec: %3u hex: %2x char: %s (aka \\c%c)\n", delta_tstamp, c, c,
printf("dec: %3u hex: %2x char: %s (aka \\c%c)", c, c,
ctrl_equivalents[c], c + 64);
} else {
printf("%6lld usec dec: %3u hex: %2x char: \\c%c\n", delta_tstamp, c, c, c + 64);
printf("dec: %3u hex: %2x char: \\c%c", c, c, c + 64);
}
} else if (c == 32) {
// The space character.
printf("%6lld usec dec: %3u hex: %2x char: <space>\n", delta_tstamp, c, c);
printf("dec: %3u hex: %2x char: <space>", c, c);
} else if (c == 127) {
// The "del" character.
printf("%6lld usec dec: %3u hex: %2x char: \\x7f (aka del)\n", delta_tstamp, c, c);
printf("dec: %3u hex: %2x char: \\x7f (aka del)", c, c);
} else if (c >= 128) {
// Non-ASCII characters (i.e., those with bit 7 set).
printf("%6lld usec dec: %3u hex: %2x char: non-ASCII\n", delta_tstamp, c, c);
printf("dec: %3u hex: %2x char: non-ASCII", c, c);
} else {
// ASCII characters that are not control characters.
printf("%6lld usec dec: %3u hex: %2x char: %c\n", delta_tstamp, c, c, c);
printf("dec: %3u hex: %2x char: %c", c, c, c);
}
if (!isnan(delta_tstamp)) {
printf(" (%.2Lf ms)", delta_tstamp);
}
char *const name = key_name(c);
if (name) {
printf("FYI: Saw sequence for bind key name \"%s\"\n", name);
printf("Sequence matches bind key name \"%s\"\n", name);
free(name);
} else{
printf("\n");
}
if (should_exit(c)) {
@ -146,9 +149,11 @@ void signal_handler(int signo) {
/// Setup our environment (e.g., tty modes), process key strokes, then reset the environment.
void setup_and_process_keys(bool continuous_mode) {
is_interactive_session = 1; // by definition this is interactive
setlocale(LC_ALL, "POSIX");
set_main_thread();
setup_fork_guards();
setlocale(LC_ALL, "POSIX");
proc_init();
env_init();
reader_init();
input_init();
@ -161,12 +166,7 @@ void setup_and_process_keys(bool continuous_mode) {
}
if (continuous_mode) {
printf("\n");
printf("Type 'exit' or 'quit' to terminate this program.\n");
printf("\n");
printf("Characters such as [ctrl-D] (EOF) and [ctrl-C] (interrupt)\n");
printf("have no special meaning and will not terminate this program.\n");
printf("\n");
printf("<ctrl-C> ('\\Cc') or type 'exit' or 'quit' followed by enter to terminate this program.\n");
} else {
set_wait_on_escape_ms(500);
}
@ -174,6 +174,12 @@ void setup_and_process_keys(bool continuous_mode) {
// TODO: We really should enable keypad mode but see issue #838.
process_input(continuous_mode);
restore_term_mode();
restore_term_foreground_process_group();
input_destroy();
proc_destroy();
reader_destroy();
input_destroy();
}
int main(int argc, char **argv) {