Ledda/djstdlib
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This commit is contained in:
Daniel Ledda
2025-01-02 18:20:56 +01:00
parent 39ff16b6a6
commit 49e379dd54
9 changed files with 80 additions and 44 deletions
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69
core.cpp
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@@ -1,6 +1,9 @@
#include <unistd.h> // TODO(djledda): get outta here
#include <math.h>
#include <string.h>
#define STB_SPRINTF_IMPLEMENTATION
#include "core.h"
#include "os.h"
#include "os.cpp"
void *pushSize(Arena *arena, size_t bytes) {
if (arena->capacity - arena->head >= bytes) {
@@ -20,13 +23,7 @@ Arena *arenaAlloc(size_t capacity) {
}
void arenaFree(Arena *arena) {
os_free(arena);
#if OS_WINDOWS
VirtualFree(arena, NULL, MEM_RELEASE);
#elif OS_LINUX
// TODO(dledda): implement this for Linux
Assert(false);
#endif
os_free(arena, arena->capacity);
}
void arenaFreeFrom(Arena *arena, size_t position) {
@@ -60,6 +57,9 @@ Scratch scratchStart(Arena **conflicts, size_t conflictCount) {
return scratch;
}
#define DeferLoop(begin_stmnt, end_stmnt) for(int __defer_i = ((begin_stmnt), 0); __defer_i < 1; (++__defer_i, (end_stmnt)))
#define WithScratch(scratchName) Scratch scratchName; DeferLoop(scratchName = scratchStart(0, 0), scratchEnd(scratchName))
void scratchEnd(Scratch scratch) {
arenaFreeFrom(scratch.arena, scratch.start);
}
@@ -86,6 +86,13 @@ void zeroList(list<T> *list) {
memset(list->data, 0, list->head * sizeof(T));
}
inline string operator""_s(const char *cstrLiteral, unsigned long length) {
return {
(char *)cstrLiteral,
length,
};
}
const char *cstring(Arena *arena, list<char> buf) {
char *arr = PushArray(arena, char, buf.length + 1);
memmove(arr, buf.data, buf.length);
@@ -166,7 +173,7 @@ list<T> listSlice(list<T> l, size_t start, size_t stop) {
if (stop == 0) {
stop = l.head;
}
// TODO(dledda): maybe assert instead
// TODO(djledda): maybe assert instead
if (stop > l.head || start > stop) {
return {0};
}
@@ -181,7 +188,7 @@ string strSlice(string str, size_t start, size_t stop) {
if (stop == 0) {
stop = str.length;
}
// TODO(dledda): maybe assert instead
// TODO(djledda): maybe assert instead
if (stop > str.length || start > stop) {
return {0};
}
@@ -207,9 +214,9 @@ bool stringContains(string str, char c) {
return false;
}
const char NUMERIC_CHARS[] = "0123456789";
string NUMERIC_CHARS = "0123456789"_s;
inline bool isNumeric(char c) {
return stringContains(strlit(NUMERIC_CHARS), c);
return stringContains(NUMERIC_CHARS, c);
}
list<string> strSplit(Arena *arena, string splitStr, string inputStr) {
@@ -317,17 +324,16 @@ string readEntireFile(Arena *arena, string filename) {
struct stat st;
stat((char *)filename.str, &st);
size_t fsize = st.st_size;
string readBuffer = PushString(arena, filesize);
readBuffer.length = filesize;
fread(readBuffer.str, sizeof(byte), filesize, input);
string readBuffer = PushString(arena, fsize);
fread(readBuffer.str, sizeof(byte), readBuffer.length, input);
fclose(input);
return readBuffer;
#endif
}
bool writeEntireFile(Arena *arena, string filename, const byte *contents, size_t contentsLength) {
#if OS_WINDOWS
bool result = false;
#if OS_WINDOWS
HANDLE fileHandle = CreateFileA(cstring(arena, filename), GENERIC_WRITE, FILE_SHARE_READ, NULL, CREATE_ALWAYS, NULL, NULL);
if (fileHandle != INVALID_HANDLE_VALUE) {
DWORD bytesWritten;
@@ -337,15 +343,15 @@ bool writeEntireFile(Arena *arena, string filename, const byte *contents, size_t
}
CloseHandle(fileHandle);
}
return result;
#elif OS_LINUX
Assert(false);
#endif
return result;
}
bool fileAppend(Arena *arena, string filename, const byte *contents, size_t contentsLength) {
#if OS_WINDOWS
bool result = false;
#if OS_WINDOWS
HANDLE fileHandle = CreateFileA(cstring(arena, filename), FILE_APPEND_DATA | FILE_GENERIC_READ, FILE_SHARE_READ, NULL, OPEN_ALWAYS, FILE_ATTRIBUTE_NORMAL, NULL);
if (fileHandle != INVALID_HANDLE_VALUE) {
DWORD bytesWritten;
@@ -356,10 +362,10 @@ bool fileAppend(Arena *arena, string filename, const byte *contents, size_t cont
}
CloseHandle(fileHandle);
}
return result;
#elif OS_LINUX
Assert(false);
#endif
return result;
}
list<string> getArgs(Arena *arena, int argc, char **argv) {
@@ -382,7 +388,7 @@ Timestamp timestampFromUnixTime(UnixTimestamp *unixTimestamp) {
}
string formatTimeHms(Arena *arena, UnixTimestamp time) {
local_persist const string format = strlit("HH-MM-SS");
local_persist const string format = "HH-MM-SS"_s;
string buf = PushString(arena, format.length);
tm *timestamp = gmtime((time_t *)&time);
strftime(buf.str, buf.length + 1, "%T", timestamp);
@@ -390,14 +396,14 @@ string formatTimeHms(Arena *arena, UnixTimestamp time) {
}
string formatTimeHms(Arena *arena, Timestamp *time) {
local_persist const string format = strlit("HH-MM-SS");
local_persist const string format = "HH-MM-SS"_s;
string buf = PushString(arena, format.length);
strftime(buf.str, buf.length + 1, "%T", (tm *)time);
return buf;
}
string formatTimeYmd(Arena *arena, UnixTimestamp time) {
local_persist const string format = strlit("YYYY-mm-dd");
local_persist const string format = "YYYY-mm-dd"_s;
string buf = PushString(arena, format.length);
tm *timestamp = gmtime((time_t *)&time);
strftime(buf.str, buf.length + 1, "%Y-%m-%d", timestamp);
@@ -405,7 +411,7 @@ string formatTimeYmd(Arena *arena, UnixTimestamp time) {
}
string formatTimeYmd(Arena *arena, Timestamp *time) {
local_persist const string format = strlit("YYYY-mm-dd");
local_persist const string format = "YYYY-mm-dd"_s;
string buf = PushString(arena, format.length);
strftime(buf.str, buf.length + 1, "%Y-%m-%d", (tm *)time);
return buf;
@@ -433,8 +439,21 @@ function void __core_log(LogTarget target, const char *fmt, va_list argList) {
}
WriteFile(stdHandle, result.str, (DWORD)result.length, &done, 0);
#elif OS_LINUX
// TODO(dledda): implementation
Assert(false);
// TODO(djledda): finish implementation without cstdlib
switch (target) {
case LogTarget_stdin:
write(0, (const void *)result.str, result.length);
break;
case LogTarget_stderr:
fflush(stderr);
write(2, (const void *)result.str, result.length);
break;
case LogTarget_stdout:
default:
fflush(stdout);
write(1, (const void *)result.str, result.length);
break;
}
#endif
scratchEnd(scratch);
}