mirror of https://github.com/swaywm/sway.git
100 lines
2.1 KiB
C
100 lines
2.1 KiB
C
#include <math.h>
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#include <stdio.h>
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#include <string.h>
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#include <stdlib.h>
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#include "readline.h"
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#include "util.h"
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#include "log.h"
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int wrap(int i, int max) {
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return ((i % max) + max) % max;
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}
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int numlen(int n) {
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if (n == 0) {
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return 1;
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}
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return log10(n) + 1;
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}
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static struct modifier_key {
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char *name;
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uint32_t mod;
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} modifiers[] = {
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{ XKB_MOD_NAME_SHIFT, WLC_BIT_MOD_SHIFT },
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{ XKB_MOD_NAME_CAPS, WLC_BIT_MOD_CAPS },
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{ XKB_MOD_NAME_CTRL, WLC_BIT_MOD_CTRL },
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{ "Ctrl", WLC_BIT_MOD_CTRL },
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{ XKB_MOD_NAME_ALT, WLC_BIT_MOD_ALT },
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{ "Alt", WLC_BIT_MOD_ALT },
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{ XKB_MOD_NAME_NUM, WLC_BIT_MOD_MOD2 },
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{ "Mod3", WLC_BIT_MOD_MOD3 },
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{ XKB_MOD_NAME_LOGO, WLC_BIT_MOD_LOGO },
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{ "Mod5", WLC_BIT_MOD_MOD5 },
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};
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uint32_t get_modifier_mask_by_name(const char *name) {
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int i;
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for (i = 0; i < (int)(sizeof(modifiers) / sizeof(struct modifier_key)); ++i) {
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if (strcasecmp(modifiers[i].name, name) == 0) {
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return modifiers[i].mod;
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}
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}
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return 0;
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}
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const char *get_modifier_name_by_mask(uint32_t modifier) {
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int i;
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for (i = 0; i < (int)(sizeof(modifiers) / sizeof(struct modifier_key)); ++i) {
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if (modifiers[i].mod == modifier) {
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return modifiers[i].name;
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}
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}
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return NULL;
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}
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int get_modifier_names(const char **names, uint32_t modifier_masks) {
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int length = 0;
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int i;
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for (i = 0; i < (int)(sizeof(modifiers) / sizeof(struct modifier_key)); ++i) {
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if ((modifier_masks & modifiers[i].mod) != 0) {
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names[length] = modifiers[i].name;
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++length;
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modifier_masks ^= modifiers[i].mod;
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}
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}
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return length;
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}
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pid_t get_parent_pid(pid_t child) {
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pid_t parent = -1;
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char file_name[100];
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char *buffer = NULL;
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char *token = NULL;
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const char *sep = " ";
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FILE *stat = NULL;
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sprintf(file_name, "/proc/%d/stat", child);
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if ((stat = fopen(file_name, "r"))) {
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if ((buffer = read_line(stat))) {
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token = strtok(buffer, sep); // pid
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token = strtok(NULL, sep); // executable name
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token = strtok(NULL, sep); // state
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token = strtok(NULL, sep); // parent pid
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parent = strtol(token, NULL, 10);
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}
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fclose(stat);
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}
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if (parent) {
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return (parent == child) ? -1 : parent;
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}
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return -1;
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}
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