maomaowm/src/fetch/common.h
copilot-swe-agent[bot] 5d145cc80f Simplify code based on final review feedback
- Use direct character assignment for constant strings
- Remove unnecessary tracking array and cleanup code
- Simplify string concatenation logic
- Fix length calculation to match actual strncat behavior
- Code is cleaner and more maintainable

Co-authored-by: squassina <8495707+squassina@users.noreply.github.com>
2026-02-18 09:02:22 +00:00

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pid_t getparentprocess(pid_t p) {
uint32_t v = 0;
FILE *f;
char buf[256];
snprintf(buf, sizeof(buf) - 1, "/proc/%u/stat", (unsigned)p);
if (!(f = fopen(buf, "r")))
return 0;
// 检查fscanf返回值确保成功读取了1个参数
if (fscanf(f, "%*u %*s %*c %u", &v) != 1) {
fclose(f);
return 0;
}
fclose(f);
return (pid_t)v;
}
int32_t isdescprocess(pid_t p, pid_t c) {
while (p != c && c != 0)
c = getparentprocess(c);
return (int32_t)c;
}
// Buffer size for layout abbreviations (must match kb_layout buffer in dwl-ipc.h)
#define LAYOUT_ABBR_SIZE 32
void get_layout_abbr(char *abbr, const char *full_name) {
// 清空输出缓冲区
abbr[0] = '\0';
// 1. 尝试在映射表中查找
for (int32_t i = 0; layout_mappings[i].full_name != NULL; i++) {
if (strcmp(full_name, layout_mappings[i].full_name) == 0) {
strncpy(abbr, layout_mappings[i].abbr, LAYOUT_ABBR_SIZE - 1);
abbr[LAYOUT_ABBR_SIZE - 1] = '\0';
return;
}
}
// 2. 尝试从名称中提取并转换为小写
const char *open = strrchr(full_name, '(');
const char *close = strrchr(full_name, ')');
if (open && close && close > open) {
uint32_t len = close - open - 1;
if (len > 0 && len <= 4) {
// 提取并转换为小写
for (uint32_t j = 0; j < len; j++) {
abbr[j] = tolower(open[j + 1]);
}
abbr[len] = '\0';
return;
}
}
// 3. 提取前2-3个字母并转换为小写
uint32_t j = 0;
for (uint32_t i = 0; full_name[i] != '\0' && j < 3; i++) {
if (isalpha(full_name[i])) {
abbr[j++] = tolower(full_name[i]);
}
}
abbr[j] = '\0';
// 确保至少2个字符
if (j >= 2) {
return;
}
// 4. 回退方案:使用首字母小写
if (j == 1) {
abbr[1] = full_name[1] ? tolower(full_name[1]) : '\0';
abbr[2] = '\0';
} else {
// 5. 最终回退:返回 "xx"
abbr[0] = 'x';
abbr[1] = 'x';
abbr[2] = '\0';
}
}
void xytonode(double x, double y, struct wlr_surface **psurface, Client **pc,
LayerSurface **pl, double *nx, double *ny) {
struct wlr_scene_node *node, *pnode;
struct wlr_surface *surface = NULL;
Client *c = NULL;
LayerSurface *l = NULL;
int32_t layer;
for (layer = NUM_LAYERS - 1; !surface && layer >= 0; layer--) {
if (layer == LyrFadeOut)
continue;
if (!(node = wlr_scene_node_at(&layers[layer]->node, x, y, nx, ny)))
continue;
if (!node->enabled)
continue;
if (node->type == WLR_SCENE_NODE_BUFFER)
surface = wlr_scene_surface_try_from_buffer(
wlr_scene_buffer_from_node(node))
->surface;
else if (node->type == WLR_SCENE_NODE_RECT) {
surface = NULL;
break;
}
/* start from the topmost layer,
find a sureface that can be focused by pointer,
impopup neither a client nor a layer surface.*/
if (layer == LyrIMPopup) {
c = NULL;
l = NULL;
} else {
for (pnode = node; pnode && !c; pnode = &pnode->parent->node)
c = pnode->data;
if (c && c->type == LayerShell) {
c = NULL;
l = pnode->data;
}
}
}
if (psurface)
*psurface = surface;
if (pc)
*pc = c;
if (pl)
*pl = l;
}