From 078e21a1feb811f9ef7797ce3ee5d2e8ffcccfce Mon Sep 17 00:00:00 2001
From: nasr <nsrddyn@gmail.com>
Date: Fri, 17 Apr 2026 17:49:10 +0200
Subject: feature(main): during my work on other projects I improved the base
 library a bit. this is a drag and drop of that in the project. the next steps
 exit out of implementing lineair regression and attempting to calcualte what
 the value would be of a key in the btree...

Signed-off-by: nasr <nsrddyn@gmail.com>

feature(main): during my work on other projects I improved the base library a bit.

this is a drag and drop of that in the project. the next steps exit out
of implementing
lineair regression and attempting to calcualte what the value would be
of a key in the btree...

Signed-off-by: nasr <nsrddyn@gmail.com>
---
 source/base/base_os.h | 96 ++++++++++++++++++++++++++++++++++++++++++++++-----
 1 file changed, 87 insertions(+), 9 deletions(-)

(limited to 'source/base/base_os.h')

diff --git a/source/base/base_os.h b/source/base/base_os.h
index 388f665..82aa70d 100644
--- a/source/base/base_os.h
+++ b/source/base/base_os.h
@@ -1,28 +1,35 @@
 #ifndef BASE_OS_H
 #define BASE_OS_H
 
+#define STDIN_FD  0
+#define STDOUT_FD 1
+#define STDERR_FD 2
+
+#endif /* BASE_OS_H */
+
+#ifdef BASE_IMPLEMENTATION
+
 internal string8
 load_file(mem_arena *arena, const char *path)
 {
     string8 result = {0};
     struct stat sbuf = {0};
 
+    // TODO(nasr): abstract this to a platform layer
     s32 file = open(path, O_RDONLY);
     if(file == -1)
     {
-        warn("fialed to open file. path could be invalid");
         return (string8){0};
     }
 
     if(fstat(file, &sbuf) == -1)
     {
-        warn("error: fstat failed");
         close(file);
         return (string8){0};
     }
 
 
-    result = PushString(arena, sbuf.st_size);
+    result = PushString8(arena, sbuf.st_size);
 
     result.size = (u64)sbuf.st_size;
     if(result.size != 0)
@@ -37,31 +44,102 @@ load_file(mem_arena *arena, const char *path)
 internal string8
 write_file(const char *path, string8 data)
 {
-
     string8 result = {0};
     s32 file = open(path, O_WRONLY | O_CREAT | O_TRUNC, 0644);
     if(file == -1)
     {
-        warn("failed to open file for writing. path could be invalid");
         return (string8){0};
     }
-    
+
     u64 written = 0;
     while(written < data.size)
     {
         s64 err = write(file, data.data + written, data.size - written);
         if(err == -1)
         {
-            warn("write syscall failed");
             close(file);
             return (string8){0};
         }
         written += err;
     }
-    
+
     close(file);
     result = data;
     return result;
 }
 
-#endif /* BASE_OS_H */
+#define os_write(buf, count) _os_write(STDIN_FD, buf, count)
+#define os_read(buf,  count)  _os_read(STDIN_FD, buf, count)
+
+internal s64
+_os_write(s32 fd, void const *buf, u64 count)
+{
+    return syscall(SYS_write, fd, buf, count);
+}
+
+internal s64
+_os_read(s32 fd, void *buf, u64 count)
+{
+    return syscall(SYS_read, fd, buf, count);
+}
+
+internal void
+log_s8(string8 s)
+{
+    os_write(s.data, s.size);
+}
+
+#if 1
+internal void
+_log(const char *str)
+{
+#ifdef BASE_LOGGING
+    s32 len = 0;
+    while (str[len]) len++;
+    os_write(str, len);
+#else
+    unused(str);
+#endif
+
+}
+#endif
+
+internal void
+write_string(const char *str)
+{
+    s32 len = 0;
+    while (str[len]) len++;
+    os_write(str, len);
+}
+
+internal void
+write_int(s32 num)
+{
+
+    if (num < 0)
+    {
+        write(STDERR_FILENO, "-", 1);
+        num = -num;
+    }
+    if (num >= 10) write_int(num / 10);
+
+    char digit = '0' + (num % 10);
+
+    write(STDERR_FILENO, &digit, 1);
+}
+
+internal inline void
+sleep_ms(long ms)
+{
+  struct timespec ts;
+  ts.tv_sec = ms / 1000;
+  ts.tv_nsec = (ms % 1000) * 1000000L;
+
+  while (nanosleep(&ts, &ts))
+  {
+    NULL;
+  }
+}
+
+
+#endif
-- 
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