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[82.64.138.184]) by smtp.googlemail.com with ESMTPSA id 18-20020a05600c025200b0040d4e1393dcsm2202014wmj.20.2024.01.31.09.51.52 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 31 Jan 2024 09:51:52 -0800 (PST) X-BeenThere: xen-devel@lists.xenproject.org List-Id: Xen developer discussion List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , Errors-To: xen-devel-bounces@lists.xenproject.org Precedence: list Sender: "Xen-devel" X-Inumbo-ID: 6ad6abe7-c061-11ee-8a43-1f161083a0e0 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=rabbit-lu.20230601.gappssmtp.com; s=20230601; t=1706723513; x=1707328313; darn=lists.xenproject.org; h=content-transfer-encoding:mime-version:message-id:date:subject:cc :to:from:from:to:cc:subject:date:message-id:reply-to; bh=Pr+XZeL59/ULvCtUWLkROAH0Yyo92CQbvVTj7VVhUqA=; b=Y/ovmtSEeuZrzozgZaqGHLwvWHX20FIkUiUYg7Sj/iSAHclxijOXbEQXSsrbHP5Dvh gsu5m6Ias6jWEU+gMrVAcyeEATbm311jUjdiVSnd7i8soQldM/baAGNoAipJKajBnuLd 6qRpUWoy0+lhgSF9cjeLeU8Hy4qMk1s8F6gpg+dAq9fA/6AG2mUGRTZRgHgaJh1zAknb 9vbOYyhLGenZbXvewbyzgnOt7FwphSMf3xJ+wjDQWovTpsIcu2ah5xmEKr75vNz4csbQ qHEjzkBYungUz2lIh6ch+c9TzI0Fxx40i/0lnt2BbyPlsstA1chZxUZzTy4uUCIUqU09 OaFQ== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1706723513; x=1707328313; h=content-transfer-encoding:mime-version:message-id:date:subject:cc :to:from:x-gm-message-state:from:to:cc:subject:date:message-id :reply-to; bh=Pr+XZeL59/ULvCtUWLkROAH0Yyo92CQbvVTj7VVhUqA=; b=E6cGAe7QbVsRSLr/MEV/QJYISHGWNe4Ud+9VE6ccrnU+grghH8KCZJOQ33s8K614vr GnX0tBTLdCkBJ/IlUGdpcAVmAoFYD0YTUWDt3M9oNifxYlsXZRLn/W2r+kajRvSZUkav +/N40qXCNqQJ2v2fzq94eV6cu1CbkdSWAd5QW9OFkBlXVJI8uewxK4um9eklQ93i8OpT K6txBnV3nUdNIUigeePa7RkKoqhFgPserpyiVT7T5Ksa5BuT+K1+ZTCUKO/E4yDbjFM3 uNNNXTZvm6wFt97aFyrqbBgRE+tkAZ2pOCsPg4/3qTSzVi9/C+jpz7n/Dui+pm5z/68P EYlQ== X-Gm-Message-State: AOJu0YzXcxBDRa2aNpF4SbvMB++riGuKnkqmoJ40sjjypTlpYK3len2p w3D5KNlFmaHvCfGa69vgz4HxfH6Jdz8ZFBMMMCGyH7RbWAiyzeRUeHW9O9vCmLqke835Wp0ZsjP P X-Google-Smtp-Source: AGHT+IFeAqpG/JV+ntc6HGPNu0pS034ko1aPLuX6cqVhzAK0zOC7vgHGR1gw3hZmwBHVEXSS9NDBTQ== X-Received: by 2002:ac2:5a0c:0:b0:50e:504e:6c34 with SMTP id q12-20020ac25a0c000000b0050e504e6c34mr148354lfn.3.1706723512707; Wed, 31 Jan 2024 09:51:52 -0800 (PST) From: =?utf-8?q?Cyril_R=C3=A9bert?= To: xen-devel@lists.xenproject.org Cc: =?utf-8?q?Cyril_R=C3=A9bert?= , Wei Liu , Anthony PERARD Subject: [PATCH] tools/xentop: add option to display dom0 first Date: Wed, 31 Jan 2024 18:51:34 +0100 Message-Id: <87846acd5b31991e38561c9765eb97730c79d0f3.1706723494.git.slack@rabbit.lu> X-Mailer: git-send-email 2.39.2 MIME-Version: 1.0 Add a command line option to xentop to be able to display dom0 first, on top of the list. This is unconditional, so sorting domains with the S option will also ignore dom0. Signed-off-by: Cyril Rébert (zithro) --- tools/xentop/xentop.c | 31 +++++++++++++++++++++++++++---- 1 file changed, 27 insertions(+), 4 deletions(-) diff --git a/tools/xentop/xentop.c b/tools/xentop/xentop.c index 950e8935c4..9068c53fd2 100644 --- a/tools/xentop/xentop.c +++ b/tools/xentop/xentop.c @@ -211,6 +211,7 @@ int show_networks = 0; int show_vbds = 0; int repeat_header = 0; int show_full_name = 0; +int dom0_first = -1; #define PROMPT_VAL_LEN 80 const char *prompt = NULL; char prompt_val[PROMPT_VAL_LEN]; @@ -240,6 +241,7 @@ static void usage(const char *program) "-b, --batch output in batch mode, no user input accepted\n" "-i, --iterations number of iterations before exiting\n" "-f, --full-name output the full domain name (not truncated)\n" + "-z, --dom0-first display dom0 first (ignore sorting)\n" "\n" XENTOP_BUGSTO, program); return; @@ -1162,7 +1164,8 @@ void do_vbd(xenstat_domain *domain) static void top(void) { xenstat_domain **domains; - unsigned int i, num_domains = 0; + unsigned int i, num_domains, sort_start, sort_count = 0; + int dom0_index = -1; /* Now get the node information */ if (prev_node != NULL) @@ -1183,11 +1186,27 @@ static void top(void) if(domains == NULL) fail("Failed to allocate memory\n"); - for (i=0; i < num_domains; i++) + for (i=0; i < num_domains; i++) { domains[i] = xenstat_node_domain_by_index(cur_node, i); + if ( strcmp(xenstat_domain_name(domains[i]), "Domain-0") == 0 ) + dom0_index = i; + } + + /* Handle dom0 position, not for dom0-less */ + if ( dom0_first == 1 && dom0_index != -1 ){ + /* if dom0 is not first in domains, swap it there */ + if ( dom0_index != 0 ){ + xenstat_domain *tmp; + tmp = domains[0]; + domains[0] = domains[dom0_index]; + domains[dom0_index] = tmp; + } + sort_start = 1; + sort_count = 1; + } /* Sort */ - qsort(domains, num_domains, sizeof(xenstat_domain *), + qsort((domains+sort_start), (num_domains-sort_count), sizeof(xenstat_domain *), (int(*)(const void *, const void *))compare_domains); if(first_domain_index >= num_domains) @@ -1242,9 +1261,10 @@ int main(int argc, char **argv) { "batch", no_argument, NULL, 'b' }, { "iterations", required_argument, NULL, 'i' }, { "full-name", no_argument, NULL, 'f' }, + { "dom0-first", no_argument, NULL, 'z' }, { 0, 0, 0, 0 }, }; - const char *sopts = "hVnxrvd:bi:f"; + const char *sopts = "hVnxrvd:bi:fz"; if (atexit(cleanup) != 0) fail("Failed to install cleanup handler.\n"); @@ -1286,6 +1306,9 @@ int main(int argc, char **argv) case 'f': show_full_name = 1; break; + case 'z': + dom0_first = 1; + break; } }