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author | patacongo <patacongo@42af7a65-404d-4744-a932-0658087f49c3> | 2008-09-12 19:17:15 +0000 |
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committer | patacongo <patacongo@42af7a65-404d-4744-a932-0658087f49c3> | 2008-09-12 19:17:15 +0000 |
commit | bd5c6bfbaee32b963be80d872f9365d70d3b6ed8 (patch) | |
tree | 01215e0e0bc94258227cbe7b18db0b4ab731bd14 /nuttx/examples/romfs/romfs_main.c | |
parent | 725491fe0e537bfee94f143d5e6162a65d9bfaf4 (diff) | |
download | px4-nuttx-bd5c6bfbaee32b963be80d872f9365d70d3b6ed8.tar.gz px4-nuttx-bd5c6bfbaee32b963be80d872f9365d70d3b6ed8.tar.bz2 px4-nuttx-bd5c6bfbaee32b963be80d872f9365d70d3b6ed8.zip |
Added mmap()/XIP test to ROMFS test
git-svn-id: svn://svn.code.sf.net/p/nuttx/code/trunk@917 42af7a65-404d-4744-a932-0658087f49c3
Diffstat (limited to 'nuttx/examples/romfs/romfs_main.c')
-rw-r--r-- | nuttx/examples/romfs/romfs_main.c | 103 |
1 files changed, 91 insertions, 12 deletions
diff --git a/nuttx/examples/romfs/romfs_main.c b/nuttx/examples/romfs/romfs_main.c index 0f5194138..4b0cd01af 100644 --- a/nuttx/examples/romfs/romfs_main.c +++ b/nuttx/examples/romfs/romfs_main.c @@ -59,10 +59,13 @@ #include <sys/types.h> #include <sys/mount.h> #include <sys/stat.h> +#include <sys/mman.h> #include <stdio.h> #include <stdlib.h> +#include <unistd.h> #include <string.h> +#include <fcntl.h> #include <dirent.h> #include <errno.h> @@ -105,6 +108,8 @@ #define MKMOUNT_DEVNAME(m) "/dev/ram" STR_RAMDEVNO(m) #define MOUNT_DEVNAME MKMOUNT_DEVNAME(CONFIG_EXAMPLES_ROMFS_RAMDEVNO) +#define SCRATCHBUFFER_SIZE 1024 + /* Test directory stuff */ #define WRITABLE_MODE (S_IWOTH|S_IWGRP|S_IWUSR) @@ -137,10 +142,10 @@ struct node_s * Private Data ****************************************************************************/ -static const char g_afilecontent[] = "This is a file"; -static const char g_anotherfilecontent[] = "This is another file"; -static const char g_yafilecontent[] = "This is yet another file"; -static const char g_subdirfilecontent[] = "File in subdirectory"; +static const char g_afilecontent[] = "This is a file\n"; +static const char g_anotherfilecontent[] = "This is another file\n"; +static const char g_yafilecontent[] = "This is yet another file\n"; +static const char g_subdirfilecontent[] = "File in subdirectory\n"; #define g_hfilecontent g_subdirfilecontent @@ -156,7 +161,7 @@ static struct node_s g_subdirfile; static int g_nerrors = 0; -static char g_pathbuffer[1024]; +static char g_scratchbuffer[SCRATCHBUFFER_SIZE]; /**************************************************************************** * Private Functions @@ -181,7 +186,7 @@ static void connectem(void) g_afile.found = FALSE; g_afile.name = "afile.txt"; g_afile.mode = FILE_MODE; - g_afile.size = strlen(g_afilecontent)+1; + g_afile.size = strlen(g_afilecontent); g_afile.u.filecontent = g_afilecontent; g_hfile.peer = NULL; @@ -189,7 +194,7 @@ static void connectem(void) g_hfile.found = FALSE; g_hfile.name = "hfile"; g_hfile.mode = FILE_MODE; - g_hfile.size = strlen(g_hfilecontent)+1; + g_hfile.size = strlen(g_hfilecontent); g_hfile.u.filecontent = g_hfilecontent; g_anotherfile.peer = &g_yafile; @@ -197,7 +202,7 @@ static void connectem(void) g_anotherfile.found = FALSE; g_anotherfile.name = "anotherfile.txt"; g_anotherfile.mode = FILE_MODE; - g_anotherfile.size = strlen(g_anotherfilecontent)+1; + g_anotherfile.size = strlen(g_anotherfilecontent); g_anotherfile.u.filecontent = g_anotherfilecontent; g_yafile.peer = &g_subdir; @@ -205,7 +210,7 @@ static void connectem(void) g_yafile.found = FALSE; g_yafile.name = "yafile.txt"; g_yafile.mode = FILE_MODE; - g_yafile.size = strlen(g_yafilecontent)+1; + g_yafile.size = strlen(g_yafilecontent); g_yafile.u.filecontent = g_yafilecontent; g_subdir.peer = NULL; @@ -221,7 +226,7 @@ static void connectem(void) g_subdirfile.found = FALSE; g_subdirfile.name = "subdirfile.txt"; g_subdirfile.mode = FILE_MODE; - g_subdirfile.size = strlen(g_subdirfilecontent)+1; + g_subdirfile.size = strlen(g_subdirfilecontent); g_subdirfile.u.filecontent = g_subdirfilecontent; } @@ -273,6 +278,79 @@ static void checkattributes(const char *path, mode_t mode, size_t size) } /**************************************************************************** + * Name: checkfile + ****************************************************************************/ + +static void checkfile(const char *path, struct node_s *node) +{ + ssize_t nbytesread; + char *filedata; + int fd; + + /* Open the file */ + + fd = open(path, O_RDONLY); + if (fd < 0) + { + printf(" -- ERROR: Failed to open %s: %d\n", path, errno); + g_nerrors++; + return; + } + + /* Read and verify the file contents */ + + nbytesread = read(fd, g_scratchbuffer, SCRATCHBUFFER_SIZE); + if (nbytesread < 0) + { + printf(" -- ERROR: Failed to read from %s: %d\n", path, errno); + g_nerrors++; + } + else if (nbytesread != node->size) + { + printf(" -- ERROR: Read %d bytes, expected %d\n", nbytesread, node->size); + g_nerrors++; + } + else if (memcmp(g_scratchbuffer, node->u.filecontent, node->size) != 0) + { + g_scratchbuffer[nbytesread] = '\0'; + printf(" -- ERROR: File content read does not match expectation:\n"); + printf(" -- Read: [%s]\n", g_scratchbuffer); + printf(" -- Expected: [%s]\n", node->u.filecontent); + g_nerrors++; + } + + /* Memory map and verify the file contents */ + + filedata = (char*)mmap(NULL, node->size, PROT_READ, MAP_SHARED|MAP_FILE, fd, 0); + if (!filedata || filedata == (char*)MAP_FAILED) + { + printf(" -- ERROR: mmap of %s failed: %d\n", path, errno); + g_nerrors++; + } + else + { + if (memcmp(filedata, node->u.filecontent, node->size) != 0) + { + memcpy(g_scratchbuffer, filedata, node->size); + g_scratchbuffer[node->size] = '\0'; + printf(" -- ERROR: Mapped file content read does not match expectation:\n"); + printf(" -- Memory: [%s]\n", filedata); + printf(" -- Expected: [%s]\n", node->u.filecontent); + g_nerrors++; + } + munmap(filedata, node->size); + } + + /* Close the file */ + + if (close(fd) != OK) + { + printf(" -- ERROR: Failed to close %s: %d\n", path, errno); + g_nerrors++; + } +} + +/**************************************************************************** * Name: readdirectories ****************************************************************************/ @@ -310,8 +388,8 @@ static void readdirectories(const char *path, struct node_s *entry) /* Get the full path to the entry */ - sprintf(g_pathbuffer, "%s/%s", path, direntry->d_name); - fullpath = strdup(g_pathbuffer); + sprintf(g_scratchbuffer, "%s/%s", path, direntry->d_name); + fullpath = strdup(g_scratchbuffer); if (DIRENT_ISDIRECTORY(direntry->d_type)) { @@ -339,6 +417,7 @@ static void readdirectories(const char *path, struct node_s *entry) else { checkattributes(fullpath, node->mode, node->size); + checkfile(fullpath, node); } } free(fullpath); |