mirror of https://github.com/xzeldon/htop.git
Correct titleBuffer size and share it in alignedProcessFieldTitle()
* The size of titleBuffer should be 257 bytes, not 256. * Remove redundant `static char titleBuffer[]` delarations within `alignedProcessFieldTitle()` and let the subroutine use one shared buffer for printing field title. This reduces code size. Signed-off-by: Kang-Che Sung <explorer09@gmail.com>
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@ -82,40 +82,41 @@ void ProcessList_setPanel(ProcessList* this, Panel* panel) {
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this->panel = panel;
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}
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static const char* alignedDynamicColumnTitle(const ProcessList* this, int key) {
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static const char* alignedDynamicColumnTitle(const ProcessList* this, int key, char* titleBuffer, size_t titleBufferSize) {
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const DynamicColumn* column = Hashtable_get(this->dynamicColumns, key);
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if (column == NULL)
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return "- ";
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static char titleBuffer[DYNAMIC_MAX_COLUMN_WIDTH + /* space */ 1 + /* null terminator */ + 1];
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int width = column->width;
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if (!width || abs(width) > DYNAMIC_MAX_COLUMN_WIDTH)
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width = DYNAMIC_DEFAULT_COLUMN_WIDTH;
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xSnprintf(titleBuffer, sizeof(titleBuffer), "%*s", width, column->heading);
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xSnprintf(titleBuffer, titleBufferSize, "%*s", width, column->heading);
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return titleBuffer;
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}
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static const char* alignedProcessFieldTitle(const ProcessList* this, ProcessField field) {
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static char titleBuffer[UINT8_MAX + sizeof(" ")];
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assert(sizeof(titleBuffer) >= DYNAMIC_MAX_COLUMN_WIDTH + sizeof(" "));
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assert(sizeof(titleBuffer) >= PROCESS_MAX_PID_DIGITS + sizeof(" "));
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assert(sizeof(titleBuffer) >= PROCESS_MAX_UID_DIGITS + sizeof(" "));
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if (field >= LAST_PROCESSFIELD)
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return alignedDynamicColumnTitle(this, field);
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return alignedDynamicColumnTitle(this, field, titleBuffer, sizeof(titleBuffer));
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const char* title = Process_fields[field].title;
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if (!title)
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return "- ";
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if (Process_fields[field].pidColumn) {
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static char titleBuffer[PROCESS_MAX_PID_DIGITS + sizeof(" ")];
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xSnprintf(titleBuffer, sizeof(titleBuffer), "%*s ", Process_pidDigits, title);
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return titleBuffer;
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}
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if (field == ST_UID) {
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static char titleBuffer[PROCESS_MAX_UID_DIGITS + sizeof(" ")];
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xSnprintf(titleBuffer, sizeof(titleBuffer), "%*s ", Process_uidDigits, title);
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return titleBuffer;
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}
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if (Process_fields[field].autoWidth) {
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static char titleBuffer[UINT8_MAX + 1];
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if (field == PERCENT_CPU)
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xSnprintf(titleBuffer, sizeof(titleBuffer), "%*s ", Process_fieldWidths[field], title);
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else
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