[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index] [Xen-devel] [PATCH 2/5] libxl: add xlu_cfg_get_type function
As cpuid= can be used with two syntaxes (one as a list, the other as a string), we need to distinguish them without an error message. Introduce a helper function to detect the type of entry used before issuing a warning. Signed-off-by: Andre Przywara -- Andre Przywara AMD-Operating System Research Center (OSRC), Dresden, Germany Tel: +49 351 448-3567-12 >From d7f48fb3caac4b2fc99e9db1a8d82b17bdf4391d Mon Sep 17 00:00:00 2001 From: Andre Przywara <andre.przywara@xxxxxxx> Date: Wed, 1 Sep 2010 14:11:54 +0200 Subject: [PATCH 2/5] libxl: add xlu_cfg_get_type function cpuid= can be used with two syntaxes, one as a list, the other as a string. Introduce a helper function to detect the type of entry used before issuing a warning. Signed-off-by: Andre Przywara --- tools/libxl/libxlu_cfg.c | 18 ++++++++++++++++++ tools/libxl/libxlutil.h | 6 ++++++ 2 files changed, 24 insertions(+), 0 deletions(-) diff --git a/tools/libxl/libxlu_cfg.c b/tools/libxl/libxlu_cfg.c index 07e65e1..c19c6ab 100644 --- a/tools/libxl/libxlu_cfg.c +++ b/tools/libxl/libxlu_cfg.c @@ -124,6 +124,24 @@ static XLU_ConfigSetting *find(const XLU_Config *cfg, const char *n) { return 0; } +int xlu_cfg_get_type(const XLU_Config *cfg, const char *n) +{ + XLU_ConfigSetting *set; + char *endptr; + long l; + + set = find(cfg, n); + if (set == NULL) + return XLU_CFG_NOTFOUND; + if (set->avalues > 1) + return XLU_CFG_LIST; + errno = 0; + l = strtol(set->values[0], &endptr, 0); + if (errno == EINVAL || endptr == set->values[0]) + return XLU_CFG_STRING; + return XLU_CFG_LONG; +} + static int find_atom(const XLU_Config *cfg, const char *n, XLU_ConfigSetting **set_r) { XLU_ConfigSetting *set; diff --git a/tools/libxl/libxlutil.h b/tools/libxl/libxlutil.h index 6c992a2..adf144e 100644 --- a/tools/libxl/libxlutil.h +++ b/tools/libxl/libxlutil.h @@ -24,6 +24,11 @@ typedef struct XLU_Config XLU_Config; typedef struct XLU_ConfigList XLU_ConfigList; +#define XLU_CFG_NOTFOUND 0 +#define XLU_CFG_LIST 1 +#define XLU_CFG_LONG 2 +#define XLU_CFG_STRING 3 + XLU_Config *xlu_cfg_init(FILE *report, const char *report_filename); /* 0 means we got ENOMEM. */ /* report_filename is copied; report is saved and must remain valid @@ -45,6 +50,7 @@ void xlu_cfg_destroy(XLU_Config*); * ERANGE value out of range (from strtol) */ +int xlu_cfg_get_type(const XLU_Config *cfg, const char *n); int xlu_cfg_get_string(const XLU_Config*, const char *n, const char **value_r); int xlu_cfg_replace_string(const XLU_Config *cfg, const char *n, char **value_r); /* free/strdup version */ int xlu_cfg_get_long(const XLU_Config*, const char *n, long *value_r); -- 1.6.4 _______________________________________________ Xen-devel mailing list Xen-devel@xxxxxxxxxxxxxxxxxxx http://lists.xensource.com/xen-devel
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