84 lines
2.0 KiB
C
84 lines
2.0 KiB
C
#include <std/base.h>
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STRUCT(OSFileOpenFlags)
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{
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u32 truncate:1;
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u32 executable:1;
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u32 write:1;
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u32 read:1;
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u32 create:1;
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};
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STRUCT(OSFilePermissions)
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{
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u8 readable:1;
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u8 writable:1;
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u8 executable:1;
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};
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STRUCT(OSReserveProtectionFlags)
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{
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u32 read:1;
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u32 write:1;
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u32 execute:1;
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u32 reserved:29;
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};
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STRUCT(OSReserveMapFlags)
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{
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u32 priv:1;
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u32 anon:1;
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u32 noreserve:1;
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u32 reserved:29;
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};
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STRUCT(Arena)
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{
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u64 reserved_size;
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u64 committed;
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u64 commit_position;
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u64 granularity;
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u8 reserved[4 * 8];
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};
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#if __APPLE__
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const global u64 page_size = KB(16);
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#else
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const global u64 page_size = KB(4);
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#endif
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global u64 minimum_granularity = page_size;
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// global u64 middle_granularity = MB(2);
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global u64 default_size = GB(4);
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void print(const char* format, ...);
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void run_command(Arena* arena, CStringSlice arguments, char* envp[]);
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String file_read(Arena* arena, String path);
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String path_dir(String string);
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String path_base(String string);
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String path_no_extension(String string);
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Arena* arena_init(u64 reserved_size, u64 granularity, u64 initial_size);
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Arena* arena_init_default(u64 initial_size);
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String arena_join_string(Arena* arena, Slice(String) pieces);
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u8* arena_allocate_bytes(Arena* arena, u64 size, u64 alignment);
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void arena_reset(Arena* arena);
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#define arena_allocate(arena, T, count) (T*)(arena_allocate_bytes(arena, sizeof(T) * count, alignof(T)))
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#define arena_allocate_slice(arena, T, count) (Slice(T)){ .pointer = arena_allocate(arena, T, count), .length = count }
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u8* os_reserve(u64 base, u64 size, OSReserveProtectionFlags protection, OSReserveMapFlags map);
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void os_commit(void* address, u64 size);
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u8 os_file_descriptor_is_valid(FileDescriptor fd);
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FileDescriptor os_file_open(String path, OSFileOpenFlags flags, OSFilePermissions permissions);
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void os_file_close(FileDescriptor fd);
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u64 os_file_get_size(FileDescriptor fd);
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void os_file_write(FileDescriptor fd, String content);
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FileDescriptor os_stdout_get();
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void os_directory_make(String path);
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void calibrate_cpu_timer();
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