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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-27 10:05:51 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-27 10:05:51 +0000 |
commit | 5d1646d90e1f2cceb9f0828f4b28318cd0ec7744 (patch) | |
tree | a94efe259b9009378be6d90eb30d2b019d95c194 /tools/testing/selftests/android/ion/ionapp_import.c | |
parent | Initial commit. (diff) | |
download | linux-upstream.tar.xz linux-upstream.zip |
Adding upstream version 5.10.209.upstream/5.10.209upstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'tools/testing/selftests/android/ion/ionapp_import.c')
-rw-r--r-- | tools/testing/selftests/android/ion/ionapp_import.c | 79 |
1 files changed, 79 insertions, 0 deletions
diff --git a/tools/testing/selftests/android/ion/ionapp_import.c b/tools/testing/selftests/android/ion/ionapp_import.c new file mode 100644 index 000000000..54b580cb0 --- /dev/null +++ b/tools/testing/selftests/android/ion/ionapp_import.c @@ -0,0 +1,79 @@ +// SPDX-License-Identifier: GPL-2.0-only +/* + * ionapp_import.c + * + * It is a user space utility to receive android ion memory buffer fd + * over unix domain socket IPC that can be exported by ionapp_export. + * This acts like a client for ionapp_export. + * + * Copyright (C) 2017 Pintu Kumar <pintu.ping@gmail.com> + */ + +#include <stdio.h> +#include <stdlib.h> +#include <unistd.h> +#include <string.h> +#include "ionutils.h" +#include "ipcsocket.h" + + +int main(void) +{ + int ret, status; + int sockfd, shared_fd; + unsigned char *map_buf; + unsigned long map_len; + struct ion_buffer_info info; + struct socket_info skinfo; + + /* This is the client part. Here 0 means client or importer */ + status = opensocket(&sockfd, SOCKET_NAME, 0); + if (status < 0) { + fprintf(stderr, "No exporter exists...\n"); + ret = status; + goto err_socket; + } + + skinfo.sockfd = sockfd; + + ret = socket_receive_fd(&skinfo); + if (ret < 0) { + fprintf(stderr, "Failed: socket_receive_fd\n"); + goto err_recv; + } + + shared_fd = skinfo.datafd; + printf("Received buffer fd: %d\n", shared_fd); + if (shared_fd <= 0) { + fprintf(stderr, "ERROR: improper buf fd\n"); + ret = -1; + goto err_fd; + } + + memset(&info, 0, sizeof(info)); + info.buffd = shared_fd; + info.buflen = ION_BUFFER_LEN; + + ret = ion_import_buffer_fd(&info); + if (ret < 0) { + fprintf(stderr, "Failed: ion_use_buffer_fd\n"); + goto err_import; + } + + map_buf = info.buffer; + map_len = info.buflen; + read_buffer(map_buf, map_len); + + /* Write probably new data to the same buffer again */ + map_len = ION_BUFFER_LEN; + write_buffer(map_buf, map_len); + +err_import: + ion_close_buffer_fd(&info); +err_fd: +err_recv: +err_socket: + closesocket(sockfd, SOCKET_NAME); + + return ret; +} |