lin-epics-modules/require
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make Linux and Windows version of directory scan more similar

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This commit is contained in:
zimoch
2015-10-22 13:47:50 +02:00
parent 1829a696da
commit bb14cc4333
1 changed files with 48 additions and 53 deletions
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require.c
+48 -53
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@@ -62,7 +62,6 @@ int requireDebug=0;
#define OS_CLASS "vxWorks"
#endif
#include <dirent.h>
#include <symLib.h>
#include <sysSymTbl.h>
#include <sysLib.h>
@@ -117,7 +116,6 @@ int requireDebug=0;
#endif
#endif
#include <dirent.h>
#include <dlfcn.h>
#define HMODULE void *
@@ -147,11 +145,6 @@ int requireDebug=0;
#define getAddress(module, name) GetProcAddress(module, name)
/* for readdir emulation: */
#define DIR HANDLE
#define dirent _WIN32_FIND_DATA
#define d_name cFileName
static char* realpath(const char* path, char* buffer)
{
int len = MAX_PATH;
@@ -176,6 +169,32 @@ int requireDebug=0;
#endif
/* for readdir: Windows or Posix */
#if defined(_WIN32)
#define DIR_HANDLE HANDLE
#define DIR_ENTRY WIN32_FIND_DATA
#define IF_OPEN_DIR(f) if(snprintf(f+modulediroffs, "\\*.*"), (dir=FindFirstFile(filename, &direntry)) != INVALID_HANDLE_VALUE || (FindClose(dir), 0))
#define START_DIR_LOOP do
#define END_DIR_LOOP while(FindNextFile(dir,&direntry)); FindClose(dir);
#define SKIP_NON_DIR(e) if (!(e.dwFileAttributes & FILE_ATTRIBUTE_DIRECTORY) || (e.dwFileAttributes & FILE_ATTRIBUTE_HIDDEN)) continue;
#define FILENAME(e) e.cFileName
#else
#include <dirent.h>
#define DIR_HANDLE DIR*
#define DIR_ENTRY struct dirent*
#define IF_OPEN_DIR(f) if ((dir = opendir(f)))
#define START_DIR_LOOP while ((direntry = readdir(dir)) != NULL)
#define END_DIR_LOOP if (dir) closedir(dir);
#ifdef _DIRENT_HAVE_D_TYPE
#define SKIP_NON_DIR(e) if (e->d_type != DT_DIR && e->d_type != DT_UNKNOWN) continue;
#else
#define SKIP_NON_DIR(e)
#endif
#define FILENAME(e) e->d_name
#endif
#define LIBDIR "lib" OSI_PATH_SEPARATOR
#define TEMPLATEDIR "db"
@@ -1034,8 +1053,6 @@ static int require_priv(const char* module, const char* version, const char* arg
const char* dirname;
const char *end;
DIR* dir;
struct dirent* dirent;
int releasediroffs;
int libdiroffs;
int extoffs;
@@ -1112,6 +1129,8 @@ static int require_priv(const char* module, const char* version, const char* arg
/* get one directory from driverpath */
int dirlen;
int modulediroffs;
DIR_HANDLE dir;
DIR_ENTRY direntry;
end = strchr(dirname, OSI_PATH_LIST_SEPARATOR[0]);
if (end && end[1] == OSI_PATH_SEPARATOR[0] && end[2] == OSI_PATH_SEPARATOR[0]) /* "http://..." and friends */
@@ -1123,52 +1142,33 @@ static int require_priv(const char* module, const char* version, const char* arg
if (requireDebug)
printf("require: trying %.*s\n", dirlen, dirname);
#ifdef _WIN32
snprintf(filename, sizeof(filename), "%.*s" OSI_PATH_SEPARATOR "%s" OSI_PATH_SEPARATOR "%n*",
dirlen, dirname, module, &modulediroffs);
dirlen++;
/* filename = "<dirname>/[dirlen]<module>/[modulediroffs]*" */
/* Does the module directory exist? */
dir = FindFirstFile(filename, &dirent);
if (dir != INVALID_HANDLE_VALUE)
{
if (requireDebug)
printf("require: found directory %s\n", filename);
do
{
if (!(dirent->dwFileAttributes & FILE_ATTRIBUTE_DIRECTORY)) continue; /* not a directory */
if ((dirent->dwFileAttributes & FILE_ATTRIBUTE_HIDDEN) continue; /* hidden */
#else
snprintf(filename, sizeof(filename), "%.*s" OSI_PATH_SEPARATOR "%s" OSI_PATH_SEPARATOR "%n",
dirlen, dirname, module, &modulediroffs);
dirlen++;
/* filename = "<dirname>/[dirlen]<module>/[modulediroffs]" */
/* Does the module directory exist? */
dir = opendir(filename);
if (dir)
IF_OPEN_DIR(filename)
{
if (requireDebug)
printf("require: found directory %s\n", filename);
/* Now look for versions. */
while ((dirent = readdir(dir)) != NULL)
START_DIR_LOOP
{
#ifdef _DIRENT_HAVE_D_TYPE
if (dirent->d_type != DT_DIR && dirent->d_type != DT_UNKNOWN) continue; /* not a directory */
#endif
#endif
if (dirent->d_name[0] == '.') continue; /* ignore hidden directories */
char* currentFilename = FILENAME(direntry);
SKIP_NON_DIR(direntry)
if (currentFilename[0] == '.') continue; /* ignore hidden directories */
someVersionFound = 1;
/* Look for highest matching version. */
if (requireDebug)
printf("require: checking version %s against required %s\n",
dirent->d_name, version);
currentFilename, version);
switch ((status = compareVersions(dirent->d_name, version)))
switch ((status = compareVersions(currentFilename, version)))
{
case EXACT: /* exact match found */
case MATCH: /* all given numbers match. */
@@ -1177,19 +1177,19 @@ static int require_priv(const char* module, const char* version, const char* arg
if (requireDebug)
printf("require: %s %s may match %s\n",
module, dirent->d_name, version);
module, currentFilename, version);
/* Check if it has our EPICS version and architecture. */
/* Even if it has no library, at least it has a dep file in the lib dir */
/* filename = "<dirname>/[dirlen]<module>/[modulediroffs]" */
if (!TRY_FILE(modulediroffs, "%s" OSI_PATH_SEPARATOR "R%s" OSI_PATH_SEPARATOR LIBDIR "%s" OSI_PATH_SEPARATOR,
dirent->d_name, epicsRelease, targetArch))
currentFilename, epicsRelease, targetArch))
/* filename = "<dirname>/[dirlen]<module>/[modulediroffs]<version>/R<epicsRelease>/lib/<targetArch>/" */
{
if (requireDebug)
printf("require: %s %s has no support for %s %s\n",
module, dirent->d_name, epicsRelease, targetArch);
module, currentFilename, epicsRelease, targetArch);
continue;
}
@@ -1197,7 +1197,7 @@ static int require_priv(const char* module, const char* version, const char* arg
{
if (requireDebug)
printf("require: %s %s matches %s exactly\n",
module, dirent->d_name, version);
module, currentFilename, version);
/* We are done. */
end = NULL;
break;
@@ -1206,40 +1206,35 @@ static int require_priv(const char* module, const char* version, const char* arg
/* Is it higher than the one we found before? */
if (found && requireDebug)
printf("require: %s %s support for %s %s found, compare against previously found %s\n",
module, dirent->d_name, epicsRelease, targetArch, found);
if (!found || compareVersions(dirent->d_name, found) == HIGHER)
module, currentFilename, epicsRelease, targetArch, found);
if (!found || compareVersions(currentFilename, found) == HIGHER)
{
if (requireDebug)
printf("require: %s %s looks promising\n", module, dirent->d_name);
printf("require: %s %s looks promising\n", module, currentFilename);
break;
}
if (requireDebug)
printf("require: version %s is lower than %s \n", dirent->d_name, found);
printf("require: version %s is lower than %s \n", currentFilename, found);
continue;
}
default:
{
if (requireDebug)
printf("require: %s %s does not match %s\n",
module, dirent->d_name, version);
module, currentFilename, version);
continue;
}
}
/* we have found something (EXACT or MATCH) */
free(founddir);
/* filename = "<dirname>/[dirlen]<module>/[modulediroffs]..." */
if (asprintf(&founddir, "%.*s%s", modulediroffs, filename, dirent->d_name) < 0)
if (asprintf(&founddir, "%.*s%s", modulediroffs, filename, currentFilename) < 0)
return errno;
/* founddir = "<dirname>/[dirlen]<module>/[modulediroffs]<version>" */
found = founddir + modulediroffs; /* version part in the path */
if (status == EXACT) break;
}
#ifdef _WIN32
while (FindNextFile(dir, &dirent);
FindClose(dir);
#else
closedir(dir);
#endif
END_DIR_LOOP
}
else
{