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Add close, add filesystem code to main kernel for hardware testing

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This commit is contained in:
Byron Lathi
2023-12-07 08:10:45 -08:00
parent 0327ab6a2b
commit 6f16ac4daf
3 changed files with 32 additions and 17 deletions
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17
sw/kernel/filesystems/fat32_c.c
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@@ -20,9 +20,21 @@ size_t fat32_file_write(int8_t fd, const void* buf, size_t nbytes) {
return -1;
}
/*
* file_close
* DESCRIPTION: close device abstracted as file
* INPUTS: fd -- file descriptor for file to be closed
* OUTPUTS: none
* RETURN VALUE: none
* SIDE EFFECTS: none
*/
int8_t fat32_file_close(int8_t fd) {
(void)fd;
return -1;
struct pcb* pcb;
pcb = get_pcb_ptr();
/* update pcb to remove process */
pcb->file_desc_array[fd].flags = !IN_USE;
return 0;
}
int8_t fat32_file_open(const char* filename) {
@@ -64,7 +76,6 @@ int8_t fat32_file_open(const char* filename) {
size_t fat32_file_read(int8_t fd, void* buf, size_t nbytes) {
uint16_t i;
uint8_t error;
size_t offset;
size_t leftover_length;
size_t bytes_read = 0;