More info on system calls?

[jnoche]

I'm trying to use the file-related system calls, but the information in "Help>System calls" is a bit lacking. For example, to use the "Open" system call, what do I put in the "flags" argument?

Do you have some more-detailed documentation about the system calls? Or an example source file with file-related system calls?

[mortbopet]

The flags are intended to follow values generally used in a unix environment, but I agree that this is not really communicated in the system call dialog.

The flags are defined here:

Ripes/src/syscall/systemio.h

Lines 80 to 86 in d692d71

	static constexpr int O_RDONLY = 0x00000000;
	static constexpr int O_WRONLY = 0x00000001;
	static constexpr int O_RDWR = 0x00000002;
	static constexpr int O_APPEND = 0x00000008;
	static constexpr int O_CREAT = 0x00000200; // 512
	static constexpr int O_TRUNC = 0x00000400; // 1024
	static constexpr int O_EXCL = 0x00000800; // 2048

I'll add some issues to address this.

[jnoche]

Thanks for the very prompt response. The code you provided answers my immediate question. Thank you for providing the link; I'll use it to find answers in case I have questions in the future.

[matsievskiysv]

The flags are intended to follow values generally used in a unix environment

FYI, values are different in Linux:

#include <stdio.h>
#include <fcntl.h>

int
main(void)
{
	printf("O_RDONLY = 0x%x\n", O_RDONLY);
	printf("O_WRONLY = 0x%x\n", O_WRONLY);
	printf("O_RDWR = 0x%x\n", O_RDWR);
	printf("O_APPEND = 0x%x\n", O_APPEND);
	printf("O_CREAT = 0x%x\n", O_CREAT);
	printf("O_TRUNC = 0x%x\n", O_TRUNC);
	printf("O_EXCL = 0x%x\n", O_EXCL);
	return 0;
}

return

O_RDONLY = 0x0
O_WRONLY = 0x1
O_RDWR = 0x2
O_APPEND = 0x400
O_CREAT = 0x40
O_TRUNC = 0x200
O_EXCL = 0x80