commit a08809ec69ae6dd0ca37a31535b8a0a3405883e5
from: Brett Fisher <code@brettfisher.xyz>
date: Thu Jun 18 06:16:43 2026 UTC

bxnotify.c, config.def.h: Name the concurrent notification cap.

  - Define MAX_STACK in config.def.h, replacing the previously
    magic-numbered [100] array dimensions and loop bounds in
    get_and_register_stack_y() and unregister_position().
  - Add cfg_max_stack as a runtime configuration variable,
    following the same pattern as cfg_stack_gap and other
    tunable defaults.
  - This makes the cap on concurrent notifications explicit,
    configurable from a single location, and consistent with
    the suite's convention of promoting tunables into the
    config layer.

commit - 95eeecbe5f3f4edfeb5f5e93b4bebd14744f30b2
commit + a08809ec69ae6dd0ca37a31535b8a0a3405883e5
blob - e3561d389654adb32ec21d28b3a67a9d0893e0c4
blob + c5ee2b825f258d251f5b5a9227cb12bcf2aac428
--- bxnotify.c
+++ bxnotify.c
@@ -47,6 +47,7 @@ static int cfg_win_y = WIN_Y;
 static int cfg_padding = PADDING;
 static int cfg_border_width = BORDER_WIDTH;
 static int cfg_stack_gap = STACK_GAP;
+static int cfg_max_stack = MAX_STACK;
 static int cfg_align = ALIGN;
 static int cfg_duration = DURATION;
 static const char *cfg_fg = FG_COLOR;
@@ -281,7 +282,7 @@ get_and_register_stack_y(int my_h)
     int lowest_y = 0;
     
     /* Store valid PIDs so we can rewrite the file cleanly */
-    char valid_lines[100][64];
+    char valid_lines[cfg_max_stack][64];
     int valid_count = 0;
 
     /* Open the file descriptor as a FILE* for easy reading with fgets */
@@ -291,7 +292,7 @@ get_and_register_stack_y(int my_h)
         int pid, y, h;
 
         /* 1. Read existing entries and find the lowest Y */
-        while (fgets(line, sizeof(line), f) && valid_count < 100) {
+        while (fgets(line, sizeof(line), f) && valid_count < cfg_max_stack) {
             if (sscanf(line, "%d %d %d", &pid, &y, &h) == 3) {
                 if (kill(pid, 0) == 0) { /* Process is still alive */
                     if ((y + h) > lowest_y)
@@ -334,11 +335,11 @@ unregister_position(void)
     FILE *f = fdopen(fd, "r+");
     if (f) {
         char line[64];
-        char keep[100][64];
+        char keep[cfg_max_stack][64];
         int count = 0;
         int my_pid = getpid();
 
-        while (fgets(line, sizeof(line), f) && count < 100) {
+        while (fgets(line, sizeof(line), f) && count < cfg_max_stack) {
             int pid;
             sscanf(line, "%d", &pid);
             /* Keep if it's not ours AND process is alive */
blob - eb4b7c67ec56f39af16d7795e0efeae2ec64c91b
blob + c776baaa995ce9eb75b97f7986a469cfc4742c6c
--- config.def.h
+++ config.def.h
@@ -10,6 +10,7 @@
 #define PADDING         6
 #define BORDER_WIDTH    2
 #define STACK_GAP       16
+#define MAX_STACK       100 /* Maximum concurrent notifications */
 #define BORDER_COLOR    "#555555"
 #define FG_COLOR        "#ffffff"
 #define BG_COLOR        "#000000"