duct taped posix.dll (just like microsoft), new cursor, more info in the fault handlers, processes now have a parse-it-yourself cmdline, add SYS_WAIT_THREAD and SYS_GET_PROCESS_PID, writing still doesn't work

code/posix/posix.h

@@ -0,0 +1,98 @@
+#pragma once
+// posix.h - POSIX type and constant definitions for posix.dll
+// Covers just what open/read/write/close/lseek/spawn/pthread/chdir need.
+
+#include <stdint.h>
+#include <stddef.h>
+#include <stdbool.h>
+
+// ---------------------------------------------------------------------------
+// errno
+// ---------------------------------------------------------------------------
+#ifdef errno
+#undef errno
+#endif
+#ifdef EAGAIN
+#undef EAGAIN
+#endif
+#ifdef ENOSYS
+#undef ENOSYS
+#endif
+extern int errno;   // defined in posix_fd.c; single global in v1
+
+#define EPERM    1
+#define ENOENT   2
+#define ESRCH    3
+#define EINTR    4
+#define EIO      5
+#define EBADF    9
+#define ENOMEM  12
+#define EACCES  13
+#define EEXIST  17
+#define ENODEV  19
+#define ENOTDIR 20
+#define EINVAL  22
+#define EMFILE  24
+#define ENOSPC  28
+#define ERANGE  34
+#define EAGAIN  35
+#define ENOSYS  38
+
+// ---------------------------------------------------------------------------
+// open() flags
+// ---------------------------------------------------------------------------
+#define O_RDONLY    0x0000
+#define O_WRONLY    0x0001
+#define O_RDWR      0x0002
+#define O_CREAT     0x0040
+#define O_TRUNC     0x0200
+#define O_APPEND    0x0400
+
+// ---------------------------------------------------------------------------
+// lseek() whence
+// ---------------------------------------------------------------------------
+#define SEEK_SET 0
+#define SEEK_CUR 1
+#define SEEK_END 2
+
+// ---------------------------------------------------------------------------
+// Scalar types
+// ---------------------------------------------------------------------------
+typedef int32_t  pid_t;
+typedef int32_t  off_t;
+typedef uint32_t mode_t;
+typedef int64_t ssize_t;
+
+// ---------------------------------------------------------------------------
+// pthread types
+// ---------------------------------------------------------------------------
+typedef struct { uint32_t Tid; }     pthread_t;
+typedef struct { uint32_t Handle; }  pthread_mutex_t;
+typedef void*                        pthread_attr_t;     // unused in v1
+typedef void*                        pthread_mutexattr_t;
+
+// ---------------------------------------------------------------------------
+// posix_spawn types  (file_actions and attrp both ignored in v1)
+// ---------------------------------------------------------------------------
+typedef void* posix_spawn_file_actions_t;
+typedef void* posix_spawnattr_t;
+
+// ---------------------------------------------------------------------------
+// dirent  (used by posix_dir.c)
+// ---------------------------------------------------------------------------
+#define NAME_MAX 259
+
+typedef struct dirent {
+    char d_name[NAME_MAX + 1];
+    unsigned char d_type;    // DT_REG or DT_DIR
+} dirent;
+
+#define DT_UNKNOWN 0
+#define DT_REG     8
+#define DT_DIR     4
+
+typedef struct DIR {
+    uint32_t KHandle;        // kernel DIR_OBJECT handle
+    dirent   Current;
+    bool     Valid;
+} DIR;