waitid_options.c

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// SPDX-License-Identifier: GPL-2.0
#include <sys/types.h>
#include <sys/wait.h>

static size_t syscall_arg__scnprintf_waitid_options(char *bf, size_t size,
                            struct syscall_arg *arg)
{
    int printed = 0, options = arg->val;

#define P_OPTION(n) \
    if (options & W##n) { \
        printed += scnprintf(bf + printed, size - printed, "%s%s", printed ? "|" : "", #n); \
        options &= ~W##n; \
    }

    P_OPTION(NOHANG);
    P_OPTION(UNTRACED);
    P_OPTION(CONTINUED);
#undef P_OPTION

    if (options)
        printed += scnprintf(bf + printed, size - printed, "%s%#x", printed ? "|" : "", options);

    return printed;
}

#define SCA_WAITID_OPTIONS syscall_arg__scnprintf_waitid_options