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libdrm  2.4.37
Functions
gem_flink.c File Reference
#include <stdlib.h>
#include <stdio.h>
#include <string.h>
#include <assert.h>
#include <fcntl.h>
#include <inttypes.h>
#include <errno.h>
#include <sys/stat.h>
#include "drm.h"
#include "i915_drm.h"

Go to the source code of this file.

Functions

static void test_flink (int fd)
static void test_double_flink (int fd)
static void test_bad_flink (int fd)
static void test_bad_open (int fd)
int main (int argc, char **argv)

Function Documentation

int main ( int  argc,
char **  argv 
)

Definition at line 116 of file gem_flink.c.

{
       int fd;

       if (geteuid()) {
              fprintf(stderr, "requires root privileges, skipping\n");
              return 77;
       }

       fd = drm_open_matching("8086:*", 0);
       if (fd < 0) {
              fprintf(stderr, "failed to open intel drm device, skipping\n");
              return 77;
       }

       test_flink(fd);
       test_double_flink(fd);
       test_bad_flink(fd);
       test_bad_open(fd);

       return 0;
}

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static void test_bad_flink ( int  fd) [static]

Definition at line 90 of file gem_flink.c.

{
       struct drm_gem_flink flink;
       int ret;

       printf("Testing error return on bad flink ioctl.\n");

       flink.handle = 0x10101010;
       ret = ioctl(fd, DRM_IOCTL_GEM_FLINK, &flink);
       assert(ret == -1 && errno == ENOENT);
}

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static void test_bad_open ( int  fd) [static]

Definition at line 103 of file gem_flink.c.

{
       struct drm_gem_open open;
       int ret;

       printf("Testing error return on bad open ioctl.\n");

       open.name = 0x10101010;
       ret = ioctl(fd, DRM_IOCTL_GEM_OPEN, &open);

       assert(ret == -1 && errno == ENOENT);
}

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static void test_double_flink ( int  fd) [static]

Definition at line 65 of file gem_flink.c.

{
       struct drm_i915_gem_create create;
       struct drm_gem_flink flink;
       struct drm_gem_flink flink2;
       int ret;

       printf("Testing repeated flink.\n");

       memset(&create, 0, sizeof(create));
       create.size = 16 * 1024;
       ret = ioctl(fd, DRM_IOCTL_I915_GEM_CREATE, &create);
       assert(ret == 0);

       flink.handle = create.handle;
       ret = ioctl(fd, DRM_IOCTL_GEM_FLINK, &flink);
       assert(ret == 0);

       flink2.handle = create.handle;
       ret = ioctl(fd, DRM_IOCTL_GEM_FLINK, &flink2);
       assert(ret == 0);
       assert(flink2.name == flink.name);
}

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static void test_flink ( int  fd) [static]

Definition at line 40 of file gem_flink.c.

{
       struct drm_i915_gem_create create;
       struct drm_gem_flink flink;
       struct drm_gem_open open;
       int ret;

       printf("Testing flink and open.\n");

       memset(&create, 0, sizeof(create));
       create.size = 16 * 1024;
       ret = ioctl(fd, DRM_IOCTL_I915_GEM_CREATE, &create);
       assert(ret == 0);

       flink.handle = create.handle;
       ret = ioctl(fd, DRM_IOCTL_GEM_FLINK, &flink);
       assert(ret == 0);

       open.name = flink.name;
       ret = ioctl(fd, DRM_IOCTL_GEM_OPEN, &open);
       assert(ret == 0);
       assert(open.handle != 0);
}

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