cozis/ToastyFS
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

Merge pull request #3 from cozis/claude/continue-deterministic-simulation-011CUiNFqeQQknvcwfkzVKME

Browse Source 
Progress on DST using Claude
This commit is contained in:
Francesco Cozzuto
2025-11-02 11:46:12 +01:00
committed by GitHub
parent 8b284f5752 d959306719
commit ba34102453
2 changed files with 308 additions and 94 deletions
Download Patch File Download Diff File Expand all files Collapse all files
src/system.c
+306 -94
View File
@@ -150,6 +150,48 @@ static int num_processes = 0;
static Process *processes[MAX_PROCESSES];
static Process *current_process = NULL;
// Simulated clock for deterministic time
static struct timespec simulated_time = {0, 0};
// Helper to set socket errors correctly on Windows vs Linux
#ifdef _WIN32
#define SET_SOCKET_ERROR(err) WSASetLastError(err)
#define SOCKET_ERROR_WOULDBLOCK WSAEWOULDBLOCK
#define SOCKET_ERROR_AFNOSUPPORT WSAEAFNOSUPPORT
#define SOCKET_ERROR_MFILE WSAEMFILE
#define SOCKET_ERROR_BADF WSAEBADF
#define SOCKET_ERROR_NOTSOCK WSAENOTSOCK
#define SOCKET_ERROR_INVAL WSAEINVAL
#define SOCKET_ERROR_ADDRINUSE WSAEADDRINUSE
#define SOCKET_ERROR_DESTADDRREQ WSAEDESTADDRREQ
#define SOCKET_ERROR_CONNABORTED WSAECONNABORTED
#define SOCKET_ERROR_ISCONN WSAEISCONN
#define SOCKET_ERROR_INPROGRESS WSAEINPROGRESS
#define SOCKET_ERROR_OPNOTSUPP WSAEOPNOTSUPP
#define SOCKET_ERROR_NOTCONN WSAENOTCONN
#define SOCKET_ERROR_CONNRESET WSAECONNRESET
#define SOCKET_ERROR_PROTOOPT WSAENOPROTOOPT
#define SOCKET_ERROR_PIPE WSAESHUTDOWN // Closest to EPIPE on Windows
#else
#define SET_SOCKET_ERROR(err) (errno = (err))
#define SOCKET_ERROR_WOULDBLOCK EWOULDBLOCK
#define SOCKET_ERROR_AFNOSUPPORT EAFNOSUPPORT
#define SOCKET_ERROR_MFILE EMFILE
#define SOCKET_ERROR_BADF EBADF
#define SOCKET_ERROR_NOTSOCK ENOTSOCK
#define SOCKET_ERROR_INVAL EINVAL
#define SOCKET_ERROR_ADDRINUSE EADDRINUSE
#define SOCKET_ERROR_DESTADDRREQ EDESTADDRREQ
#define SOCKET_ERROR_CONNABORTED ECONNABORTED
#define SOCKET_ERROR_ISCONN EISCONN
#define SOCKET_ERROR_INPROGRESS EINPROGRESS
#define SOCKET_ERROR_OPNOTSUPP EOPNOTSUPP
#define SOCKET_ERROR_NOTCONN ENOTCONN
#define SOCKET_ERROR_CONNRESET ECONNRESET
#define SOCKET_ERROR_PROTOOPT ENOPROTOOPT
#define SOCKET_ERROR_PIPE EPIPE
#endif
static void process_poll_array(Process *process,
void **contexts, struct pollfd *polled, int num_polled)
{
@@ -522,12 +564,12 @@ int mock_rename(char *oldpath, char *newpath)
SOCKET mock_socket(int domain, int type, int protocol)
{
if (domain != AF_INET || type != SOCK_STREAM || protocol != 0) {
// TODO: errno
SET_SOCKET_ERROR(SOCKET_ERROR_AFNOSUPPORT); // Address family not supported
return INVALID_SOCKET;
}
if (current_process->num_desc == MAX_DESCRIPTORS) {
// TODO: errno
SET_SOCKET_ERROR(SOCKET_ERROR_MFILE); // Too many open files
return INVALID_SOCKET;
}
@@ -561,41 +603,59 @@ static DescriptorAddress convert_address(void *addr, size_t addr_len)
int mock_bind(SOCKET fd, void *addr, size_t addr_len)
{
if (fd == INVALID_SOCKET) {
// TODO
if (fd == INVALID_SOCKET || (int)fd < 0 || (int)fd >= MAX_DESCRIPTORS) {
SET_SOCKET_ERROR(SOCKET_ERROR_BADF); // Bad file descriptor
return -1;
}
int idx = (int) fd;
Descriptor *desc = &current_process->desc[idx];
if (desc->type != DESC_SOCKET) {
// TODO
SET_SOCKET_ERROR(SOCKET_ERROR_NOTSOCK); // Socket operation on non-socket
return -1;
}
DescriptorAddress address = convert_address(addr, addr_len);
if (address.type == DESC_ADDR_VOID) {
// TODO
SET_SOCKET_ERROR(SOCKET_ERROR_INVAL); // Invalid argument
return -1;
}
// TODO: Should check that the address family matched
// the one used to create the socket
// Check if address is already in use by another socket
for (int i = 0; i < current_process->num_desc; i++) {
Descriptor *other = &current_process->desc[i];
if (other->type != DESC_EMPTY && i != idx) {
if (other->address.type == address.type) {
if (address.type == DESC_ADDR_IPV4 &&
other->address.ipv4.sin_port == address.ipv4.sin_port &&
other->address.ipv4.sin_addr.s_addr == address.ipv4.sin_addr.s_addr) {
SET_SOCKET_ERROR(SOCKET_ERROR_ADDRINUSE); // Address already in use
return -1;
}
}
}
}
desc->address = address;
return 0;
}
int mock_listen(SOCKET fd, int backlog)
{
if (fd == INVALID_SOCKET) {
// TODO
if (fd == INVALID_SOCKET || (int)fd < 0 || (int)fd >= MAX_DESCRIPTORS) {
SET_SOCKET_ERROR(SOCKET_ERROR_BADF); // Bad file descriptor
return -1;
}
int idx = (int) fd;
Descriptor *desc = &current_process->desc[idx];
if (desc->type != DESC_SOCKET) {
// TODO
SET_SOCKET_ERROR(SOCKET_ERROR_NOTSOCK); // Socket operation on non-socket
return -1;
}
if (desc->address.type == DESC_ADDR_VOID) {
SET_SOCKET_ERROR(SOCKET_ERROR_DESTADDRREQ); // Destination address required (socket not bound)
return -1;
}
@@ -607,32 +667,35 @@ int mock_listen(SOCKET fd, int backlog)
SOCKET mock_accept(SOCKET fd, void *addr, socklen_t *addr_len)
{
if (fd == INVALID_SOCKET) {
// TODO
return -1;
if (fd == INVALID_SOCKET || (int)fd < 0 || (int)fd >= MAX_DESCRIPTORS) {
SET_SOCKET_ERROR(SOCKET_ERROR_BADF); // Bad file descriptor
return INVALID_SOCKET;
}
int idx = (int) fd;
Descriptor *desc = &current_process->desc[idx];
if (desc->type != DESC_LISTEN_SOCKET) {
// TODO
return -1;
SET_SOCKET_ERROR(SOCKET_ERROR_INVAL); // Invalid argument (not a listening socket)
return INVALID_SOCKET;
}
DescriptorHandle peer_handle;
if (!accept_queue_pop(&desc->accept_queue, &peer_handle)) {
// TODO
assert(0);
SET_SOCKET_ERROR(SOCKET_ERROR_WOULDBLOCK); // Would block (no pending connections)
return INVALID_SOCKET;
}
Descriptor *peer = handle_to_desc(peer_handle);
if (peer == NULL) {
// Peer closed without removing itself from the accept queue!
assert(0);
// Try next connection in queue
SET_SOCKET_ERROR(SOCKET_ERROR_CONNABORTED); // Connection aborted
return INVALID_SOCKET;
}
if (current_process->num_desc == MAX_DESCRIPTORS) {
// TODO
SET_SOCKET_ERROR(SOCKET_ERROR_MFILE); // Too many open files
return INVALID_SOCKET;
}
int new_idx = 0;
while (current_process->desc[new_idx].type != DESC_EMPTY)
@@ -658,89 +721,164 @@ SOCKET mock_accept(SOCKET fd, void *addr, socklen_t *addr_len)
int mock_getsockopt(SOCKET fd, int level, int optname, void *optval, socklen_t *optlen)
{
// TODO
if (fd == INVALID_SOCKET || (int)fd < 0 || (int)fd >= MAX_DESCRIPTORS) {
SET_SOCKET_ERROR(SOCKET_ERROR_BADF); // Bad file descriptor
return -1;
}
int idx = (int) fd;
Descriptor *desc = &current_process->desc[idx];
if (desc->type == DESC_EMPTY) {
SET_SOCKET_ERROR(SOCKET_ERROR_BADF);
return -1;
}
// Only support SOL_SOCKET level for now
if (level != SOL_SOCKET) {
SET_SOCKET_ERROR(SOCKET_ERROR_PROTOOPT); // Protocol not available
return -1;
}
// Support SO_ERROR option
if (optname == SO_ERROR) {
if (*optlen < sizeof(int)) {
SET_SOCKET_ERROR(SOCKET_ERROR_INVAL);
return -1;
}
*(int*)optval = 0; // No error
*optlen = sizeof(int);
return 0;
}
SET_SOCKET_ERROR(SOCKET_ERROR_PROTOOPT);
return -1;
}
int mock_setsockopt(SOCKET fd, int level, int optname, void *optval, socklen_t optlen)
{
// TODO
return -1;
if (fd == INVALID_SOCKET || (int)fd < 0 || (int)fd >= MAX_DESCRIPTORS) {
SET_SOCKET_ERROR(SOCKET_ERROR_BADF); // Bad file descriptor
return -1;
}
int idx = (int) fd;
Descriptor *desc = &current_process->desc[idx];
if (desc->type == DESC_EMPTY) {
SET_SOCKET_ERROR(SOCKET_ERROR_BADF);
return -1;
}
// Only support SOL_SOCKET level for now
if (level != SOL_SOCKET) {
SET_SOCKET_ERROR(SOCKET_ERROR_PROTOOPT); // Protocol not available
return -1;
}
// Most socket options are ignored in simulation
// Just validate the call but don't actually apply settings
(void)optval;
(void)optlen;
(void)optname;
return 0; // Success (no-op)
}
int mock_recv(SOCKET fd, void *dst, int len, int flags)
{
if (fd == INVALID_SOCKET) {
// TODO
if (fd == INVALID_SOCKET || (int)fd < 0 || (int)fd >= MAX_DESCRIPTORS) {
SET_SOCKET_ERROR(SOCKET_ERROR_BADF); // Bad file descriptor
return -1;
}
if (flags) {
// TODO
if (flags != 0) {
SET_SOCKET_ERROR(SOCKET_ERROR_OPNOTSUPP); // Operation not supported
return -1;
}
int idx = (int) fd;
Descriptor *desc = &current_process->desc[idx];
if (desc->type != DESC_CONNECTION_SOCKET) {
// TODO
SET_SOCKET_ERROR(SOCKET_ERROR_NOTCONN); // Transport endpoint is not connected
return -1;
}
if (desc->connection_state != CONNECTION_ESTABLISHED) {
// TODO
SET_SOCKET_ERROR(SOCKET_ERROR_NOTCONN);
return -1;
}
Descriptor *peer = handle_to_desc(desc->connection_peer);
if (peer == NULL) {
// TODO
return -1;
// Peer closed - return 0 to indicate orderly shutdown
return 0;
}
DataQueue *input_data = &peer->output_data;
return data_queue_read(input_data, dst, len);
int bytes_read = data_queue_read(input_data, dst, len);
// If no data available, would block
if (bytes_read == 0) {
SET_SOCKET_ERROR(SOCKET_ERROR_WOULDBLOCK);
return -1;
}
return bytes_read;
}
int mock_send(SOCKET fd, void *src, int len, int flags)
{
if (fd == INVALID_SOCKET) {
// TODO
if (fd == INVALID_SOCKET || (int)fd < 0 || (int)fd >= MAX_DESCRIPTORS) {
SET_SOCKET_ERROR(SOCKET_ERROR_BADF); // Bad file descriptor
return -1;
}
if (flags) {
// TODO
if (flags != 0) {
SET_SOCKET_ERROR(SOCKET_ERROR_OPNOTSUPP); // Operation not supported
return -1;
}
int idx = (int) fd;
Descriptor *desc = &current_process->desc[idx];
if (desc->type != DESC_CONNECTION_SOCKET) {
// TODO
SET_SOCKET_ERROR(SOCKET_ERROR_NOTCONN); // Transport endpoint is not connected
return -1;
}
if (desc->connection_state != CONNECTION_ESTABLISHED) {
// TODO
SET_SOCKET_ERROR(SOCKET_ERROR_NOTCONN);
return -1;
}
data_queue_write(&desc->output_data, src, len);
return len;
// Check if peer is still connected
Descriptor *peer = handle_to_desc(desc->connection_peer);
if (peer == NULL) {
SET_SOCKET_ERROR(SOCKET_ERROR_PIPE); // Broken pipe / connection shutdown
return -1;
}
// Write data to output queue
int bytes_written = data_queue_write(&desc->output_data, src, len);
// If queue is full, we would block
if (bytes_written < len) {
SET_SOCKET_ERROR(SOCKET_ERROR_WOULDBLOCK);
return bytes_written > 0 ? bytes_written : -1;
}
return bytes_written;
}
int mock_connect(SOCKET fd, void *addr, size_t addr_len)
{
if (fd == INVALID_SOCKET) {
// TODO
if (fd == INVALID_SOCKET || (int)fd < 0 || (int)fd >= MAX_DESCRIPTORS) {
SET_SOCKET_ERROR(SOCKET_ERROR_BADF); // Bad file descriptor
return -1;
}
int idx = (int) fd;
Descriptor *desc = &current_process->desc[idx];
if (desc->type != DESC_SOCKET) {
// TODO
SET_SOCKET_ERROR(SOCKET_ERROR_ISCONN); // Transport endpoint is already connected
return -1;
}
@@ -748,10 +886,12 @@ int mock_connect(SOCKET fd, void *addr, size_t addr_len)
desc->connection_state = CONNECTION_DELAYED;
desc->connect_address = convert_address(addr, addr_len);
if (desc->connect_address.type == DESC_ADDR_VOID) {
// TODO
SET_SOCKET_ERROR(SOCKET_ERROR_INVAL); // Invalid argument
return -1;
}
// Return EINPROGRESS/WSAEWOULDBLOCK to indicate non-blocking connection in progress
SET_SOCKET_ERROR(SOCKET_ERROR_INPROGRESS);
return -1;
}
@@ -890,20 +1030,20 @@ HANDLE mock_CreateFileW(WCHAR *lpFileName, DWORD dwDesiredAccess,
BOOL mock_CloseHandle(HANDLE handle)
{
if (fd == INVALID_SOCKET) {
// TODO
return -1;
if (handle == INVALID_HANDLE_VALUE || (int)handle < 0 || (int)handle >= MAX_DESCRIPTORS) {
SetLastError(ERROR_INVALID_HANDLE);
return FALSE;
}
int idx = (int) fd;
int idx = (int) handle;
Descriptor *desc = &current_process->desc[idx];
if (desc->type != DESC_FILE) {
// TODO
return -1;
SetLastError(ERROR_INVALID_HANDLE);
return FALSE;
}
close_desc(desc);
return 0;
return TRUE;
}
BOOL mock_LockFile(HANDLE hFile,
@@ -912,18 +1052,19 @@ BOOL mock_LockFile(HANDLE hFile,
DWORD nNumberOfBytesToLockLow,
DWORD nNumberOfBytesToLockHigh)
{
if (handle == INVALID_HANDLE_VALUE) {
// TODO
if (hFile == INVALID_HANDLE_VALUE || (int)hFile < 0 || (int)hFile >= MAX_DESCRIPTORS) {
SetLastError(ERROR_INVALID_HANDLE);
return FALSE;
}
int idx = (int) handle;
int idx = (int) hFile;
Descriptor *desc = &current_process->desc[idx];
if (desc->type != DESC_FILE) {
// TODO
return -1;
SetLastError(ERROR_INVALID_HANDLE);
return FALSE;
}
// Forward to real LockFile, last error is set by the real call
return LockFile(
desc->real_fd,
dwFileOffsetLow,
@@ -939,18 +1080,19 @@ BOOL mock_UnlockFile(
DWORD nNumberOfBytesToUnlockLow,
DWORD nNumberOfBytesToUnlockHigh)
{
if (handle == INVALID_HANDLE_VALUE) {
// TODO
if (hFile == INVALID_HANDLE_VALUE || (int)hFile < 0 || (int)hFile >= MAX_DESCRIPTORS) {
SetLastError(ERROR_INVALID_HANDLE);
return FALSE;
}
int idx = (int) handle;
int idx = (int) hFile;
Descriptor *desc = &current_process->desc[idx];
if (desc->type != DESC_FILE) {
// TODO
return -1;
SetLastError(ERROR_INVALID_HANDLE);
return FALSE;
}
// Forward to real UnlockFile, last error is set by the real call
return UnlockFile(
desc->real_fd,
dwFileOffsetLow,
@@ -961,69 +1103,73 @@ BOOL mock_UnlockFile(
BOOL mock_FlushFileBuffers(HANDLE handle)
{
if (handle == INVALID_HANDLE_VALUE) {
// TODO
if (handle == INVALID_HANDLE_VALUE || (int)handle < 0 || (int)handle >= MAX_DESCRIPTORS) {
SetLastError(ERROR_INVALID_HANDLE);
return FALSE;
}
int idx = (int) handle;
Descriptor *desc = &current_process->desc[idx];
if (desc->type != DESC_FILE) {
// TODO
return -1;
SetLastError(ERROR_INVALID_HANDLE);
return FALSE;
}
// Forward to real FlushFileBuffers, last error is set by the real call
return FlushFileBuffers(desc->real_fd);
}
BOOL mock_ReadFile(HANDLE handle, char *dst, DWORD len, DWORD *num, OVERLAPPED *ov)
{
if (handle == INVALID_HANDLE_VALUE) {
// TODO
if (handle == INVALID_HANDLE_VALUE || (int)handle < 0 || (int)handle >= MAX_DESCRIPTORS) {
SetLastError(ERROR_INVALID_HANDLE);
return FALSE;
}
int idx = (int) handle;
Descriptor *desc = &current_process->desc[idx];
if (desc->type != DESC_FILE) {
// TODO
return -1;
SetLastError(ERROR_INVALID_HANDLE);
return FALSE;
}
// Forward to real ReadFile, last error is set by the real call
return ReadFile(desc->real_fd, dst, len, num, ov);
}
BOOL mock_WriteFile(HANDLE handle, char *src, DWORD len, DWORD *num, OVERLAPPED *ov)
{
if (handle == INVALID_HANDLE_VALUE) {
// TODO
if (handle == INVALID_HANDLE_VALUE || (int)handle < 0 || (int)handle >= MAX_DESCRIPTORS) {
SetLastError(ERROR_INVALID_HANDLE);
return FALSE;
}
int idx = (int) handle;
Descriptor *desc = &current_process->desc[idx];
if (desc->type != DESC_FILE) {
// TODO
return -1;
SetLastError(ERROR_INVALID_HANDLE);
return FALSE;
}
return WriteFile(desc->real_fd, src, len, num ov);
// Forward to real WriteFile, last error is set by the real call
return WriteFile(desc->real_fd, src, len, num, ov);
}
BOOL mock_GetFileSizeEx(HANDLE handle, LARGE_INTEGER *buf)
{
if (handle == INVALID_HANDLE_VALUE) {
// TODO
if (handle == INVALID_HANDLE_VALUE || (int)handle < 0 || (int)handle >= MAX_DESCRIPTORS) {
SetLastError(ERROR_INVALID_HANDLE);
return FALSE;
}
int idx = (int) handle;
Descriptor *desc = &current_process->desc[idx];
if (desc->type != DESC_FILE) {
// TODO
return -1;
SetLastError(ERROR_INVALID_HANDLE);
return FALSE;
}
// Forward to real GetFileSizeEx, last error is set by the real call
return GetFileSizeEx(desc->real_fd, buf);
}
@@ -1037,11 +1183,55 @@ int mock__mkdir(char *path)
return _mkdir(path);
}
BOOL mock_QueryPerformanceCounter(LARGE_INTEGER *lpPerformanceCount)
{
if (lpPerformanceCount == NULL) {
SetLastError(ERROR_INVALID_PARAMETER);
return FALSE;
}
// Use simulated time to generate deterministic performance counter
// Frequency is 10 MHz (10,000,000 counts per second)
const LONGLONG frequency = 10000000LL;
LONGLONG count = (LONGLONG)simulated_time.tv_sec * frequency;
count += ((LONGLONG)simulated_time.tv_nsec * frequency) / 1000000000LL;
lpPerformanceCount->QuadPart = count;
return TRUE;
}
BOOL mock_QueryPerformanceFrequency(LARGE_INTEGER *lpFrequency)
{
if (lpFrequency == NULL) {
SetLastError(ERROR_INVALID_PARAMETER);
return FALSE;
}
// Return fixed frequency of 10 MHz for deterministic behavior
// This is a common frequency on modern systems
lpFrequency->QuadPart = 10000000LL; // 10 million counts per second
return TRUE;
}
#else
int mock_clock_gettime(clockid_t clockid, struct timespec *tp)
{
// TODO
if (tp == NULL) {
errno = EFAULT; // Bad address
return -1;
}
// Only support CLOCK_REALTIME and CLOCK_MONOTONIC for now
if (clockid != CLOCK_REALTIME && clockid != CLOCK_MONOTONIC) {
errno = EINVAL; // Invalid clock ID
return -1;
}
// Return simulated time for deterministic behavior
*tp = simulated_time;
return 0;
}
int mock_open(char *path, int flags, int mode)
@@ -1054,97 +1244,119 @@ int mock_open(char *path, int flags, int mode)
int mock_close(int fd)
{
if (fd < 0) {
// TODO
if (fd < 0 || fd >= MAX_DESCRIPTORS) {
errno = EBADF; // Bad file descriptor
return -1;
}
int idx = (int) fd;
Descriptor *desc = &current_process->desc[idx];
if (desc->type == DESC_EMPTY) {
errno = EBADF;
return -1;
}
close_desc(desc);
return 0;
}
int mock_flock(int fd, int op)
{
if (fd < 0) {
// TODO
if (fd < 0 || fd >= MAX_DESCRIPTORS) {
errno = EBADF; // Bad file descriptor
return -1;
}
int idx = fd;
Descriptor *desc = &current_process->desc[idx];
if (desc->type != DESC_FILE) {
// TODO
errno = EBADF; // Not a file descriptor
return -1;
}
// Forward to real flock, errno is set by the real call
return flock(desc->real_fd, op);
}
int mock_fsync(int fd)
{
if (fd < 0) {
// TODO
if (fd < 0 || fd >= MAX_DESCRIPTORS) {
errno = EBADF; // Bad file descriptor
return -1;
}
int idx = fd;
Descriptor *desc = &current_process->desc[idx];
if (desc->type != DESC_FILE) {
// TODO
errno = EINVAL; // Invalid argument (not a file)
return -1;
}
// Forward to real fsync, errno is set by the real call
return fsync(desc->real_fd);
}
int mock_read(int fd, char *dst, int len)
{
if (fd < 0) {
// TODO
if (fd < 0 || fd >= MAX_DESCRIPTORS) {
errno = EBADF; // Bad file descriptor
return -1;
}
int idx = fd;
Descriptor *desc = &current_process->desc[idx];
if (desc->type == DESC_EMPTY) {
errno = EBADF;
return -1;
}
if (desc->type == DESC_FILE) {
// Forward to real read, errno is set by the real call
return read(desc->real_fd, dst, len);
} else {
// Socket read
return mock_recv(fd, dst, len, 0);
}
}
int mock_write(int fd, char *src, int len)
{
if (fd < 0) {
// TODO
if (fd < 0 || fd >= MAX_DESCRIPTORS) {
errno = EBADF; // Bad file descriptor
return -1;
}
int idx = fd;
Descriptor *desc = &current_process->desc[idx];
if (desc->type == DESC_EMPTY) {
errno = EBADF;
return -1;
}
if (desc->type == DESC_FILE) {
// Forward to real write, errno is set by the real call
return write(desc->real_fd, src, len);
} else {
// Socket write
return mock_send(fd, src, len, 0);
}
}
int mock_fstat(int fd, struct stat *buf)
{
if (fd < 0) {
// TODO
if (fd < 0 || fd >= MAX_DESCRIPTORS) {
errno = EBADF; // Bad file descriptor
return -1;
}
int idx = fd;
Descriptor *desc = &current_process->desc[idx];
if (desc->type != DESC_FILE) {
// TODO
errno = EBADF; // Not a file descriptor
return -1;
}
// Forward to real fstat, errno is set by the real call
return fstat(desc->real_fd, buf);
}
src/system.h
+2
View File
@@ -61,6 +61,8 @@ BOOL mock_FlushFileBuffers(HANDLE handle);
BOOL mock_ReadFile(HANDLE handle, char *dst, DWORD len, DWORD *num, OVERLAPPED *ov);
BOOL mock_WriteFile(HANDLE handle, char *src, DWORD len, DWORD *num, OVERLAPPED *ov);
BOOL mock_GetFileSizeEx(HANDLE handle, LARGE_INTEGER *buf);
BOOL mock_QueryPerformanceCounter(LARGE_INTEGER *lpPerformanceCount);
BOOL mock_QueryPerformanceFrequency(LARGE_INTEGER *lpFrequency);
char* mock__fullpath(char *path, char *dst, int cap);
int mock__mkdir(char *path);
#else